PEMBAHASAN TRYOUT NASIONAL

MASUK PERGURUAN TINGGI NEGERI

TAHUN 2015

MATEMATIKA DASAR

BAHASA INDONESIA

BAHASA INGGRIS

KEMAMPUAN VERBAL

KEMAMPUAN NUMERAL

KEMAMPUAN FIGURAL

KODE

18 TES KEMAMPUAN DAN

POTENSI AKADEMIK

(TKPA)

PEMBAHASAN MATEMATIKA DASAR 18

1. JAWAB: A

Pembahasan :

Karena a dan b merupakan akar persamaan kuadrat, maka:

a2 + a + 1 = 0

maka 1 = - a2 - a

a2 = - a - 1 kalikan dengan a

a3 = - a2 - a

a3=1

berlaku juga untuk b,

b2 + b +1 = 0

maka 1 = - b2 - b

b2 = - b - 1 , kalikan dengan b

b3 = - b2 - b

b3 = 1

Maka a6045 + b6045 = a(3(2015)) + b(3(2015)) = 1 + 1 =2

2. JAWAB: D

Pembahasan:

Dari persamaan satu,maka didapatkan jumlah kedua akarnya adalah A+B=-b/a=-2

Dan hasil kali kedua akarnya adalah AB=c/a=-1/2

Persamaan dua, missal akarnya adalah p dan q, maka jumah kedua akarnya adalah

p+q=-b/a = 10, dan hasil kali kedua akarnya pq=c/a=√6 .

Maka yang memenuhi adalah (d).

(2𝐴2 + 3) +(2𝐵2 − 3) = 2(𝐴2 + 𝐵2)

= 2[(𝐴 + 𝐵)2 − 2𝐴𝐵] = 10

(2𝐴2 + 3) × (2𝐵2 − 3) = 4(𝐴𝐵)2 − 6(𝐴2 − 𝐵2) − 9

= 4 (1

4) − 6(𝐴 + 𝐵)(𝐴 − 𝐵) − 9 , (A-B= akarD / a)

= 4 (1

4) − 6(−2)(√6) − 9

= 12(√6) − 8

3. JAWAB: E

Pembahasan:

Dari definisi harga mutlak, |𝑥| = 𝑥 untuk ≥ 0 , dan |𝑥| = −𝑥 untuk 𝑥 < 0.

Sedangkan |2-x|=2-x untuk 2-x ≥ 0 atau untuk x ≤ 2,dan |2-x|= - 2 + x untuk 2-x < 0 atau

x > 2.

Gabungkan semua syarat diatas didapatkan

Untuk x < 0, pertidaksamaan menjadi –x + 2 – x – 3 > 0

-2x-1>0

x<-1/2

Untuk 0 ≤ x ≤ 2

x+2-x-3 > 0

-1 > 0, jadi untuk interval 0 ≤ x ≤ 2 tidak ada yang memenuhi

Untuk x > 2

x-2+x -3 > 0

2x > 5

x > 5/2

maka solusi pertidaksamaan adalah x < -1/2 atau x > 5/2.

4. JAWAB: E

Pembahasan :

Dengan menggunakan uji salah satu titik pada daerah yang diarsir didapat opsi yang memenuhi

x≥0;

y≥0;

2x+3y≤12;

-x+y≤2;

5. JAWAB: C

Pembahasan :

log(4𝑎 − 14) = log 10

4a-14 = 10

a = 6

log(𝑏 − 4) = log 𝑎

b-4 = 6

b = 10

log𝑥 𝑎 = log 𝑏

log𝑥 6 = log10

x = 6

6. JAWAB: C

Pembahasan :

Diketahui ada 3 nilai dan nilai terendahnya adalah 80

Misal siswa tersebut memiliki nilai 80, 𝑝, 𝑞

Untuk mencari nilai maksimum yang dapat dicapai terlebih dahulu dicari interval nilai siswa

tersebut.

Nilai minimum siswa tersebut adalah saat 𝑝 = 𝑞, sehingga nilainya 80, 𝑝, 𝑝. Nilai 𝑝 adalah

80 + 2𝑝

3= 85

𝑝 = 87,5

Nilai maksimum siswa tersebut adalah saat 𝑝 = 80, sehingga nilainya 80, 80, 𝑝. Nilai 𝑝 adalah

80 + 80 + 𝑝

3= 85

𝑝 = 95

Berarti 80 ≤ 𝑝, 𝑞 ≤ 95. Maka nilai maksimum siswa tersebut adalah 95.

7. JAWAB: D

Pembahasan :

Sin(x+y) = ½ sin y cos x

Sinx cosy + siny cosx = ½ siny cosx

Sinx cos y = -½ siny cosx

-½Sinx cosy =¼siny cosx

= ¼ sin(x+y)

8. JAWAB: E

Pembahasan :

Sesuai aturan rantai,

G(x) = (sin (F (2x))) 3

G’(x) = 3= (sin (F (2x))) 2(cos (F (2x) . F’ (2x) . 2)

Diketahui F (2) = π/4, F’ (2) = 1/√2

Maka G’ (1) = 3(sin (π/4)) 2(cos (π/4) . 2. 1/√2

G’ (1) = 3(½) . (2 . ½)

G’ (1) = 3/2

9. JAWAB: C

Pembahasan :

Dari soal diketahui bahwa 𝑎 = log2 cos 𝑥, 𝑟 = log2 cos 𝑥

Dengan menggunakan rumus deret tak hingga didapat

log2 cos 𝑥

1 − log2 cos 𝑥= −

1

3

log2 cos 𝑥

log2 2 − log2 cos 𝑥= −

1

3

log2 cos 𝑥

log22

𝑐𝑜𝑠𝑥

= −1

3

log 2cos 𝑥

cos 𝑥 = −1

3

2

cos 𝑥

−13

= cos 𝑥

cos 𝑥

2= (cos 𝑥)3

cos 𝑥 (√2 cos 𝑥 − 1)(√2 cos 𝑥 + 1) = 0

Maka nilai 𝑥 yang memenuhi adalah 270, 315

Untuk 𝑥 = 270, nilai tan 3𝑥 + cot 3𝑥 = tan(3.270) + cot(3.270) = ∞

Untuk 𝑥 = 315, nilai tan 3𝑥 + cot 3𝑥 = tan(3.315) + cot(3.315) = −2

10. JAWAB: D

Pembahasan :

U2.U4 =4

ar.ar3 =4

ar2 =2

54321 UUUUU a5r10

=25

=32

11. JAWAB: A

Pembahasan :

Gradien garis singgung sebuah kurva diperoleh dengan mensubstitusi absis titik singgung pada

turunan pertama suatu kurva.

(𝑥)= 𝑦 = 4𝑥 − 𝑥2 ⇒ 𝑓′(𝑥)= 4−2𝑥

Jadi, gradien garis singgung parabola 𝑦 = 4𝑥 − 𝑥2 di titik (1, 3) adalah :

𝑚 = 𝑓′(1) ⇒ 𝑚 = 4−2(1) = 4−2 = 2

Sehingga, persamaan garis singgung parabola 𝑦 = 4𝑥 − 𝑥2 dengan gradien 𝑚 = 2 di titik A(1, 3) dapat

ditentukan dengan :

𝑦−𝑦1 = 𝑚(𝑥−𝑥1)

⇒ −3=2(𝑥−1)

⇔ 𝑦−3=2𝑥−2

⇔ 𝑦=2𝑥−2+3

⇔ 𝑦=2𝑥+1

Diketahui bahwa garis singgung parabola 𝑦 = 4𝑥 − 𝑥2 juga menyinggung parabola 𝑦=𝑥2−6𝑥+𝑘, maka

substitusikan 𝑦=2𝑥+1 ke persamaan parabola 𝑦=𝑥2−6𝑥+𝑘, sehingga diperoleh persamaan kuadrat

berikut :

2𝑥+1= 𝑥2−6𝑥+𝑘

⇒ 𝑥2−6𝑥+𝑘 −(2𝑥+1)=0

⇔ 𝑥2−6𝑥+𝑘 −2𝑥−1=0

⇔ 𝑥2−8𝑥+(𝑘−1)=0

Karena garis singgung dan parabola tersebut saling bersinggungan, maka nilai diskriminan dari

persamaan kuadrat tersebut sama dengan nol (𝐷=0). Sehingga diperoleh nilai 𝑘 sebagai berikut :

𝐷=0 ⇒ 𝑏2−4𝑎𝑐 = 0

⇔(−8)2−4(1)(𝑘−1)=0

⇔ 64−4(𝑘−1)=0

⇔ 64−4𝑘+4=0

⇔68−4𝑘=0 ⇔ 68=4𝑘 ⇔ 17=𝑘

Jadi, nilai dari 2009 + √𝑘 − 1 = 2009 + √17 − 1 = 2009 + √16 = 2013

12. JAWAB: A

Pembahasan :

Persamaan kuadrat Y = 4 + X - X2

Misalkan titik P(Xa, Xa) dan titik Q(Xb, Yb). Konsep titik pada kurva secara aljabar mengatakan bahwa

nilai absis dan ordinat dari titik itu harus memenuhi persamaan kurva yang diberikan. Dalam hal ini

kita peroleh

Ya= 4 + (Xa) – (Xa)2 dan Yb = 4 + Xb – Xb2 .....(1)

Kemudian, karena titik asal O(0,0) merupakan titik tengah ruas garis AB, maka berdasarkan konsep

titik tengah diperoleh

Xa+ Xb= 0 dan Ya + Yb = 0 .....(2)

Agar persamaan (2) dapat digunakan, maka persamaan pertama dan kedua dalam persamaan(1)

harus dijumlahkan sehingga diperoleh

Ya + Yb= 8 + Xa + Xb – (Xa2 + Xb2)

atau

Xa2 + Xb2 = 8

Sekali lagi kita perlu konsep

(Xa + Xb)2 - 2XaXb = Xa2 + Xb2 = 8

Dengan demikian,

-2XaXb = 8 maka XaXb = –4 atau Xb = –4/Xa

Setelah disubstitusi ke bagian pertama dalam persamaan (2) diperoleh

Xa = +-2 dan Xb = -+2. Dari sini, kita memperoleh Ya = +-2 dan Yb = -+2.

Dengan demikian, titik P(2, 2) dan Q(–2, –2) atau sebaliknya.

Sehingga jarak A ke B yaitu:

= akar [(Xb-Xa)2 + (Yb-Ya)2]

= akar [(16) + (16)]

= akar [2.16]

= 4√2

13. JAWAB: B

Pembahasan :

9P5 = 9!

(9−5)!

= 15120

14. JAWAB: D

Pembahasan :

Pernyataan bilangan ganjil sama dengan bilangan genap bernilai salah.

Pernyataan 1+2 sama dengan bilangan ganjil benar.

Salah maka benar maka nilainya benar.

Dari 5 opsi yang tersedia yang bernilai benar hanya D.

15. JAWAB: B

Pembahasan :

Diketahui : r bola = 3 cm

Misalkan jari2 alas kerucut adalah 𝑥 dan jarak alas kerucut ke pusat bola adalah 𝑦.

Maka 𝑦 = √9 − 𝑥2 , sehingga tinggi kerucut = 𝑡 = (√9 − 𝑥2 + 3) cm

V kerucut = 1

3𝜋𝑥2( √9 − 𝑥2 + 3)

Akan dicari titik stasioner, yaitu saat 𝑉′(𝑥) = 0

⇒ 𝑉′(𝑥) = 0

⇒ 1

3𝜋𝑥2 (−

𝑥

√9−𝑥2 ) + ( √9 − 𝑥2 + 3)

2

3𝜋𝑥 = 0

⇔ 2√9 − 𝑥2 + 6 = (𝑥2

√9−𝑥2 )

⇔ 2(9 − 𝑥2) + 6√9 − 𝑥2 = 𝑥2

⇔ 𝑥4 − 8𝑥2 = 0

⇔ 𝑥 = 0 𝑉 𝑥 = 2√2 , 𝑥 = 0 tidak memenuhi.

Sehingga :

Vmaks kerucut = 1

3𝜋(2√2 )2( 4)

=32

3𝜋 cm3

PEMBAHASAN BAHASA INDONESIA 18

16. Jawab: C

Opini, ialah pendapat, pikiran, atau pendirian

seseorang tentang sesuatu atau dapat

menjawab pertanyaan bagaimana.

Pernyataan-pernyataan yang merupakan

opini adalah Menurut Tom Kennedy, permen

lollipop yang baik dihasilkan dari perpaduan

60% sirup jagung dan 40% gula kemudian

dipanaskan pada suhu 310 derajat fahrenheit.

17. Jawab: E

Pernyataan berikut yang tidak relevan dengan

maksud paragraf di atas adalah Waduk

Jatiluhur digunakan untuk olahraga ski air,

kano, dayung, perahu naga dan lain-lain

karena tidak sesuai dengan kalimat utama

Waduk Jatiluhur merupakan salah satu

tempat wisata di Jawa Barat yang patut

dikunjungi. Jawaban A, B, C, dan D

berhubungan dengan kalimat utama karena

koheren (sesuai) dengan masalah yang

dibicarakan yaitu penjelasan.

18. Jawab: A

Kalimat yang termasuk kalimat efektif adalah

kalimat A, sedangkan kalimat yang lain

seharusnya B) Tempat wisata di Jawa Timur

terdiri dari wisata religi, wisata pemandangan

alam dan wisata budaya, dan wisata balai

konservasi pelestarian fauna langka. C)

Kegagalan proyek itu karena perancangan

tidak baik dan pengawasan yang kurang

cermat. D)Meskipun negara itu penghasil

kapas nomor satu dunia, harga tekstilnya

sangat tinggi. E) Pendidikan antikorupsi akan

dilaksanakan segera di seluruh jenjang

pendidikan mulai tahun ajaran baru

2012/2013 (tidak ada P = dilaksanakan).

19. Jawab: A

Kerangka Karangan adalah rencana garis

besar karangan berdasarkan tingkat

kepentingannya, pokok- pokok yang akan

dibicarakan, pedoman bagi pembaca untuk

mengetahui isi suatu karangan. Kerangka

karangan yang paling runtut berdasarkan pola

deduktif adalah pentingnya pembiasaan

berperilaku tertib lalu lintas, manfaat

pembiasaan berperilaku tertib lalu lintas,

bentuk pembiasaan berperilaku tertib lalu

lintas, sasaran pembiasaan berperilaku tertib

lalu lintas, langkah pembiasaan berperilaku

tertib lalu lintas.

20. Jawab: E

Simpulan harus dirumuskan secara logis

dengan menggambarkan atau mewakili

seluruh pernyataan yang ada dengan mencari

kalimat yang paling banyak dijelaskan dalam

paragraf tersebut. Simpulan yang paling tepat

untuk teks di atas adalah Berkat penelitian

dan pengembangannya, PT Hartono Istana

Teknologi bias memenuhi kebutuhan

konsumen dan memajukan industri

elektronik.

21.A

22.C

23.E

24.E

25.E

26.A

27.C

28.D

29.A

30.E

PEMBAHASAN BAHASA INGGRIS 18

31. The nomination of the Vice President candidates takes place..........

(A) on the same day as that of the President’s candidate

(B) on the day preceding that of the President’s candidate

(C) on the day following that of the President’s candidate

(D) either (b) or (c)

(E) on Sunday

32. Harry Truman is mentioned here to show that..........

(A) a president may die while in office

(B) a vice President is considered equally important as a President

(C) a vice President has assumed new duties and importance

(D) all of the above

(E) none of the above

33. How are the requirements for the Vice President candidate and the President

candidate?

(A) the same

(B) completely different

(C) the same except for one requirement

(D) both (b) and (c)

(E) the difference

THE ELECTION OF VICE PRESIDENT

After the convention chooses the Presidential candidate, the nominee for Vice President is

selected the next day. This is usually accomplished on the first ballot. The Vice President is the only

public official in the United States, other than the President, who is elected by all the states. The

names of a party’s candidates for President and Vice President are placed together on the ballot. Thus,

a vote for one is a vote for the other. Usually the Presidential candidate has a great authority in

deciding who the Vice President candidate will be as the two men will have to work closely together.

The constitutional requirements for the Vice President are practically the same as those for the

President. However, he may not come from the same state as President.

In recent years the Vice President has assumed new duties and importance. Since several

American Presidents have died in office, it is believed that the candidate for Vice President should be

considered in the same light as the candidate for President. In 1945, when Franklin D. Roosevelt died,

Vice President Harry Truman became President, as did Lyndon Johnson the death of President John

F. Kennedy in 1963.

34. What does the text tell us about?

(A) all materials including ice cream have sense of heat

(B) the molecules in the hot chocolate and the cold ice-cream move very fast

(C) the molecules in cool water can move faster than molecules in other things

(D) swallowing fast-moving molecules is good for children

(E) the molecules in cool materials can’t move freely

35. When you swallow those fast-moving molecules they give you some of their heat

energy—they make you feel warm. (par. 3). The italic phrase can he meant as

(A) the molecules

(B) the molecules that are in the ice-cream

(C) the molecules that in cool water

(D) the molecules in the hot chocolate

(E) the molecules in the ice-cream and cool water

Which is hottest—ice cream, a glass of cool water or a streaming cup of chocolate? The

chocolate is hottest of course. But it wouldn’t be quite right to say that the ice-cream and the water

aren’t hot at all. Each one has some heat. All things have heat, even very cold things. But some things

have more heat than the others. So when we use words like hot and cold we aren’t really talking

about two different ideas. We are simply telling how much energy something has. The molecules in

the hot chocolates are moving very fast, they have a lot of energy. When you swallow those fast

moving molecules they give you some of their heat energy. They make you feel warm.

The molecules in the cold ice-cream are moving very slowly, but they are moving! They have

a small amount of heat energy. Because your body has much more heat energy that the ice cream

does, ice cream can’t warm you up. It takes away heat energy instead. It makes you feel cool. The

molecules in cool water move faster than the molecules in ice cream, but they don’t move as fast as

the molecules in hot chocolate. So, compared to ice cream, cool water is warm and compared to hot

chocolate, cool water is cold!

36. What is the topic of the text above?

(A) Long-life span

(B) Survival

(C) youth

(D) Old age span.

(E) Health secrets

37. Which of the following is true about the information in the text?

(A) Gene quality contributes much more to life

(B) Okinawa people look younger at their actual

(C) All alcoholic drinks decrease life expectation.

(D) All of Dr. Perls' subjects are self-reliant.

(E) Superold people normally can exceed 100.

Scientists are as obsessed with the question of why the superold survive and thrive as Ponce

de Leon was to find the Fountain of Youth. They want to understand why the Japanese islands of

Okinawa are home to the world's largest population of centenarians, with almost 600 of its 1.3 million

inhabitants living into their second century-many of them active and looking decades younger than

their actual years. Like weekend visitors on the summer ferry to Martha's Vineyard, scientists and

sociologists block the boats to Sardinia and Nova Scotia, Canada, to see why those craggy locales hide

vast clusters of the superold. As well as studying these populations intensively to unlock their secrets,

scientists have also taken a hard look at the very old in the U.S., most notably in the New England

Centenarian Study. led by Dr. Thomas Perls, a geriatrician at Boston University. While the very old are

happy to offer homespun explanations for 10 their longevity-HI never took a drink"; "I drank a shot of

whiskey every day"-experts are trying to unravel and understand the biological factors that allow some

people to reach while others drop off in their 70s or 80s. Researchers are particularly interested in

determining which factors allow up to 30% of those who

reach 100 to do so in sufficient mental and physical health: a whopping 90% of centenarians, according

to Perls. remain functionally independent up to age 92.

It is pretty obvious even to nonscientists that how you get there depends partly on the genes

you are born with and partly on lifestyle-what and how much you eat, where you live and what types

of stress and trauma you experience. How much depends on each factor, though, was unknown until

Swedish scientists tackled the problem in 1998. They did it by looking at the only set of people who

share genes but not lifestyle: identical twins who were separated at birth and reared apart. If genes

were most important, you would expect the twins to die at about the same age. In fact, they do not,

and the average difference convinced the scientists that only about 20% to 30% of how long we live is

genetically determined. The dominant factor is lifestyle.

38. ln writing the text, the writer's tone could be best described as ...

(A) conservative.

(B) informative.

(C) persuasive.

(D) descriptive.

(E) evaluative

39. ln the text above the writer deals with a topic on ...

(A) prevalence of autism among children.

(B) possible biological causes of autism.

(C) research findings on mental disorders.

(D) maternal age and autism in children.

(E) negative effects of delayed pregnancy.

It is common knowledge that as women get older, pregnancy becomes a riskier enterprise.

Advanced maternal age is linked to a number of developmental disorders in children, such as Down's

syndrome. Now, a study has confirmed that older mothers are more likely to give birth to a child with

autism, too. The authors of the epidemiological study, published February 8 in Autism Research,

examined the parental age of more than 12,000 children with autism and nearly five million"control"

children between 1990 and 1999, all living in California. The researchers found that mothers over 40

had a 51 percent higher risk of having a child with autism than mothers 25 to 29, and a 77 percent

higher risk than mothers under 25.

Autism-a developmental disorder characterized by impaired social interactio" and

communication-appears to be on the rise. The U.S. Centers for Disease Control and Prevention now

estimates that as many as one in 110 children in the U.S. has an autistic spectrum disorder-a group of

developmental disorders including autism, Asperger's syndrome and pervasive developmental

disorder. The prevalence of autistic spectrum disorders in California in 2007 was 12 times that from

1987, representing an average annual growth of 13 percent, according to a report from the California

Department of Developmental Services. Only a fraction of these extra cases can be explained by

changes to diagnostic criteria and earlier diagnoses.

Maternal age is also increasing in the U.S. A California-based study reported a three-fold

increase in the number of births to women aged 40 to 44 between 1982 and 2004. But this trend

toward delayed childbearing accounted for less than 5 percent of the total increase in autism

diagnoses in California over the decade, according to the study-a finding that surprised Janie Shelton,

a doctoral student in University of California, Davis's Department of Public Health Sciences and the

study's lead author. "I would have expected to see more of a contribution, because age is a risk factor

and women are having kids later," she says. Earlier work had suggested that both maternal and

paternal ages are independently associated with autism risk. But the current study found that paternal

age is only a risk factor when the mother is under 30.

40. It can be concluded from the text that ...

(A) a big age difference of parents of 40 years or beyond may result in autism.

(B) several mental disorders can be prevented by having kids earlier.

(C) women today show a general trend in delaying pregnancy.

(D) the paternal age only partly explains the case of mental disorders among children.

(E) the case of autism among children remains a mystery among scientists.

41. From the information in the first and second paragraphs, it can be inferred that ...

(A) developmental disorders in children are close to delayed pregnancy.

(B) modified diagnosis criteria can detect many cases of autism.

(C) many of the children in the US obviously suffer from autism.

(D) asperger's syndrome is not related in any way to autism.

(E) studies on autism have not successfully revealed its causes.

42. Which of the following best describes the author's purpose in this study?

(A) To reveal that the case of autism among children is prevalent

(B) To analyse how delayed pregnancy brings about autism

(C) To make the readers aware of the consequence of delayed pregnancy

(D) To refute a common misconception about the cause of autism

(E) To demonstrate that autism is associated with delayed pregnancy

43. From the second paragraph, it can be inferred that....

(A) Wesley is a successful prestigious school.

(B) the students at Wesley are from the haves.

(C) the students at Wesley are mostly colored.

(D) the colored students usually perform better.

(E) wesley curriculum is adopted by other schools

44. ln writing the text, the writer's tone could be best described as

(A) persuasive

(B) descriptive

(C) informative

(D) evaluative

(E) conservative

Many modern educational experts claim that teaching facts and academic skills is less

important than achieving other social objectives. For some liberals, the schools must first change

attitudes or provide nurturing in place of failed families or help establish equality and social justice.

For some conservatives, the school must first prepare kids for the workplace by molding them into

supple corporate citizens, while others want the focus to be on family values, a competitive spirit, or

other social or behavioral objectives. But the idea of simply educating kids seems to have taken a

backseat to most educational experts and administrators.

They miss the point that kids with real academic skills, especially skills in reading, writing, and

mathematics, are more likely to overcome social barriers, more likely to have genuine self esteem,

and most likely to be genuinely prepared for the challenges of life and the workplace. By emphasizing

so many things besides a genuine, classical education, tile educational establishment tends to soli our

kids short and bring about many of the problems they claim to be solving consider the case of Wesley

Elemontary School in Houston. According to Richard Nadlor in the article, "Failing Grade", Wesley has

all the demographic markers of a school bound for failure. Over 80% of the students qualify for

subsidized lunches, and nearly all are minorities (92% black, 7% Hispanic). Yet it ranks among the best

schools of Houston, with first-graders placing at the 82nd percentile level in reading tests which is 50

points higher than the expected level for similar at-risk schools.

What has made Wesley so successful? The answer is classical education in the form of Direct

Instruction curriculum designed by Siegfried Engelmann, an example of the much ridiculed "sage-on-

the-stage" approach. This Direct Instruction system boosts reading, writing, and math scores by 30 to

40 percentile points in at­risk schools. Sadly, Engelmann, like others who successfully challenge

popular fads in educational reform, has been rejected by much of the educational establishment. His

success is an embarrassment to them.

45. Which of the following best reflects the author's opinion about schools?

(A) Teaching social skills is more important than academic skills

(B) Schools must be able to change the attitude of the students.

(C) Teaching academic skills is more important than social skills

(D) Teaching social skills should use conventional methods.

(E) Teaching academic skills is somehow contemporary

PEMBAHASAN SOAL TPA PAKET 18 BAGIAN TPA

SINONIM

46. A. EKLIPS = GERHANA

47. B. MUKJIZAT = BARAKAH

48. B. DEDIKASI = PENGABDIAN

49. C. PROVOKASI = PANCINGAN

50. E. DEHIDRASI = PENYUSUTAN AIR

ANTONIM

51. D. GEGAI >< KUAT

52. E. CANGGIH >< SEDERHANA

53. A. KONVEKS >< KONKAF

54. D. PERINTIS >< PEWARIS

55. D. TINGGI >< RENDAH

ANALOGI

56. E.

SEKUMPULAN BUNGA DALAM BUKET = SEKUMPULAN KERTAS DALAM BUKU

57. C.

RUMPUT ADA DI LAPANGAN = BINTANG ADA DI ANGKASA

58. D.

ULAT : KEPOMPONG : KUPU-KUPU = BAYI : KANAK-KANAK : REMAJA

59. C.

TUKANG MENGGUNAKAN GERGAJI DAN PALU = MONTIR MENGGUNAKAN OBENG DAN TANG

60. E.

BURUNG TERBANG DI UDARA = IKAN BERENANG DI LAUT

NUMERIKAL

61. C.

1/9 , 1/3 , 1, 3, 9, , 27 , 81, 243

Merupakan deret geometri dengan rasio 3

62. D.

18, 9, 3, 8, 4, 2, 7, 31

𝟐

Merupakan deret dengan pola dibagi 2, diakarkan, ditambah 5 dan seterusnya

63. D.

10, 30, 32, 16, 48, 50, 25, 75

Merupakan deret dengan pola dikalikan 3, ditambah 2, dibagi 2, dan seterusnya

64. B.

15, 10, 5, 20, 15, 10, 40, 35

Merupakan deret dengan pola dikurangi 5, dikurangi 5, dikalikan 4, dan seterusnya

65. B.

A, B, D, B, B, D, C, B, D, D, B, D, E, B

Merupakan deret dengan pola sebagai berikut

A, B, D, B, B, D, C, B, D, D, B, D, E, B

ABSTRAKSI HITUNGAN

66. B.

12 + 22 + 32 + 42 + 52 + .......... + 92 =

1 + 4 + 9 + 16 + 25 + 36 + 49 + 64 + 81 = 285

67. C.

a3 – 3a2b + 3ab2 – b3 = 53 – 3.52.2 + 3.5.22

= 125 – 150 + 60 = 27

68. C.

(882 + 115)2 = 9972 = 994.009

69. A. 44

20 −

32

68 = 2,2 – 0,47 = 1,73

70. A

X = 75% x 24 = 18

Y = ½ x 27 = 13,5

71. C.

M = 0,375 % x 5,43

N = 5,43 % x 0,375

Berlaku hubungan komutatif sehingga M = N

72. B.

2*(3*(5*1)) = 2*(3*(5-1)

= 2*(3*4) = 2*(3-16)

= 2*(-13) = 2-169

= -167

73. E. x+ x +2 + x + 4 +2x −3 + 2

5 =

5x+5

5 = 16

x+ 1 = 16

maka x = 15.

Maka umur yang paling tua adalah 2.15 – 3 = 27 tahun

74. C.

“Menyusul” berarti menempuh jarak yang sama.

Misal waktu yang dibutuhkan truk = T

Maka waktu yang dibutuhkan sedan = T-1/2

Sehingga memenuhi persamaan GLB

S truk = S sedan

V truk . T = V sedan . (T-1/2)

40.T = 60 . T – 30

20 T = 30

Maka T = 3/2 jam

Sehingga sedan akan menyusul truk pada pukul 9.40

75. C.

Misal jari- jari tabung B adalah R. dan Tinggi Tabung B adalah T

Volume A/ Volume B = π. (RA)2 . TA/ π.(R)2.T

Volume A/ Volume B = π.(R2/4).4T / π.R2.T

Sehingga Volume A : Volume B = 1 : 1

76. B.

77. C.

78. D.

79. B.

80. C.

81. D.

82. B.

83. C.

84. D.

85. B.

86. D.

87. C.

88. E.

89. A.

90. B.