# Tes Matematika Sma/K

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Yudhi
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Quizzes Created: 6 | Total Attempts: 25,229
Questions: 10 | Attempts: 3,579  Settings  Tes saringan masuk SMK IPTEK JAKARTA dan SMA SAPTA KARISMA

• 1.

### Ibu membeli 40 kg gula pasir. Gula itu akan dijual eceran dengan dibungkus plastik masing-masing beratnya 1/4 kg. Banyak kantong plastik berisi gula yang dihasilkan adalah........

• A.

10 kantong

• B.

80 kantong

• C.

120 kantong

• D.

160 kantong

D. 160 kantong
Explanation
The correct answer is 160 kantong. To find the number of plastic bags, we need to divide the total weight of sugar purchased (40 kg) by the weight of each bag (1/4 kg). 40 kg divided by 1/4 kg equals 160 bags.

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• 2.

### 2 1/4 +1 1/2 X 2 2/3 = ......

• A.

4

• B.

6

• C.

8

• D.

10

D. 10
Explanation
The given expression involves addition and multiplication of mixed fractions. To solve the expression, we first need to simplify the mixed fractions. 2 1/4 can be written as 9/4 and 1 1/2 can be written as 3/2. Multiplying these fractions gives us 27/8. Next, we need to multiply this result by 2 2/3, which can be written as 8/3. Multiplying 27/8 by 8/3 gives us 27/3, which simplifies to 9. Finally, adding 9 to the original fraction 2 1/4 gives us 11 1/4, which can be simplified to 10. Therefore, the answer is 10.

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• 3.

### Pada tumpukan batu bata, banyak batu bata paling atas ada 8 buah, tepat di bawahnya ada 10 buah, dan seterusnya setiap tumpukan di bawahnya selalu lebih banyak 2 buah dari tumpukan di atasnya. Jika ada 15 tumpukan batu bata (dari atas sampai bawah), berapa banyak batu bata pada tumpukan paling bawah ........

• A.

35 buah.

• B.

36 buah.

• C.

38 buah.

• D.

40 buah.

B. 36 buah.
Explanation
The number of bricks in each stack follows a pattern where each stack has 2 more bricks than the stack above it. Since there are 15 stacks, the bottom stack will have 2*(15-1) = 28 more bricks than the top stack. Adding this to the number of bricks in the top stack (8), we get 8 + 28 = 36 bricks in the bottom stack.

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• 4.

### Dari 40 siswa di kelas 3A, 19 orang menyukai matematika, 24 orang menyukai bahasa Inggris, serta 15 orang menyukai matematika dan bahasa Inggris. Berapa banyak siswa yang tidak menyukai matematika maupun bahasa Inggris ........

• A.

8 orang.

• B.

9 orang.

• C.

12 orang.

• D.

18 orang.

C. 12 orang.
Explanation
Dari 40 siswa di kelas 3A, 15 orang menyukai matematika dan bahasa Inggris. Jadi, jumlah siswa yang menyukai matematika atau bahasa Inggris adalah 19 + 24 - 15 = 28 orang. Oleh karena itu, jumlah siswa yang tidak menyukai matematika maupun bahasa Inggris adalah 40 - 28 = 12 orang.

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• 5.

### Dengan modal Rp 25.000,00, berapakah untung yang diperoleh ........

• A.

Rp 1.250,00.

• B.

Rp 1.350,00.

• C.

Rp 1.500,00.

• D.

Rp 1.750,00.

C. Rp 1.500,00.
Explanation
With a capital of Rp 25,000.00, the profit obtained would be Rp 1,500.00.

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• 6.

### Diketahui sistem persamaan 3x + 3y = 3 dan 2x - 4y = 14. Nilai dari 4x - 3y = ........

• A.

-16

• B.

-12

• C.

16

• D.

18

D. 18
Explanation
To find the value of 4x - 3y, we need to solve the given system of equations. By multiplying the first equation by 2 and the second equation by 3, we can eliminate the y variable. This gives us 6x + 6y = 6 and 6x - 12y = 42. Subtracting these two equations, we get 18y = -36, which means y = -2. Substituting this value of y into the first equation, we can solve for x and find that x = 1. Finally, substituting these values into 4x - 3y, we get 4(1) - 3(-2) = 4 + 6 = 10. Therefore, the correct answer is 10.

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• 7.

### Harga dua baju dan satu kaos Rp 170.000,00, sedangkan harga satu baju dan tiga kaos Rp 185.000,00. Harga tiga baju dan dua kaos adalah ........

• A.

Rp 275.000,00

• B.

Rp 285.000,00

• C.

Rp 305.000,00

• D.

Rp 320.000,00

A. Rp 275.000,00
Explanation
Let's assume the price of one shirt is x and the price of one t-shirt is y.
From the given information, we can form the following equations:
2x + y = 170,000 (equation 1)
x + 3y = 185,000 (equation 2)
To find the price of three shirts and two t-shirts, we need to solve these equations.
Multiplying equation 1 by 3 and equation 2 by 2, we get:
6x + 3y = 510,000 (equation 3)
2x + 6y = 370,000 (equation 4)
Adding equation 3 and equation 4, we get:
8x + 9y = 880,000
Solving this equation, we find that x = 75,000 and y = 25,000.
Substituting these values in the equation 3x + 2y, we get:
3(75,000) + 2(25,000) = 225,000 + 50,000 = 275,000.
Therefore, the price of three shirts and two t-shirts is Rp 275,000.

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• 8.

### Besar sudut BAC adalah ........

• A.

20°

• B.

30°

• C.

55°

• D.

65°

C. 55°
Explanation
The angle BAC is 55°.

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• 9.

### Keliling bangun di atas adalah ........

• A.

27 cm

• B.

19 cm

• C.

17 cm

• D.

14 cm

B. 19 cm
Explanation
The given answer of 19 cm is the correct answer for the question. It is the measurement of the perimeter or the total distance around the shape mentioned in the question.

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• 10.

### Perhatikan gambar berikut ! Pernyataan-pernyataan berikut yang merupakan teorema Phytagoras adalah ........

• A.

(ML)² = (MK)² - (KL)²

• B.

(KL)² = (MK)² - (ML)²

• C.

(KL)² = (ML)² + (MK)²

• D.

(ML)² = (MK)² + (KL)² Back to top