# Simplifications Test-2 (Previous Year Question)

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Ashwin
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Quizzes Created: 6 | Total Attempts: 650
Questions: 10 | Attempts: 114

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• 1.

### 90.05 + 281 ÷ 4 -151.06 = 3√?

• A.

27

• B.

343

• C.

729

• D.

8

C. 729
Explanation
We can approximate this as 90 + 280/4 - 151

Apply BODMAS rule,

90 + 70 - 151 = 3√?
9 = 3√?
? = 9*9*9 = 729

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• 2.

### 17.982 + 4.05 * 90.11 ÷ 4.98 =?

• A.

396

• B.

336

• C.

423

• D.

342

A. 396
Explanation
This can be approximated as 18 square + 4 * 90 / 5
Apply BODMAS, we get,

324 + 4 * 18 = 324 + 72 = 396

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• 3.

### 80.04% of 150.16 + 60.02% of 50.07 = ?

• A.

150

• B.

125

• C.

210

• D.

213

A. 150
Explanation
This can be approximated as 80% of 150 + 60% of 50

80% of 150 = 8*15 = 120
60% of 50 = 6*5 = 30

So 120 + 30 = 150

(Kindly refer Speed Math practice sheets to master percentages calculations)

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• 4.

### √628 * 17.996 ÷ 15.04 = ?

• A.

30

• B.

10

• C.

5

• D.

20

• E.

25

A. 30
Explanation
We can approximate the same as √625 *18 / 15 = 25 * 6/5 = 25 * 1.2 = 30

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• 5.

### 1/8 * 121 + 1/5 * 76 - ?  =25

• A.

65

• B.

45

• C.

15

• D.

35

• E.

5

E. 5
Explanation
We can approximate this as 1/8 * 120 + 1/5 * 75 - ? = 25

15 + 15 - ? = 25

30 - ? = 25

? = 5

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• 6.

### 1599 ÷ 39.99 + 4/5 * 2449 - 120.5 = ?

• A.

1780

• B.

1880

• C.

1680

• D.

1940

B. 1880
Explanation
We can approximate this as 1600 ÷ 40 + 4/5 * 2450 - 120

40 + 1960 - 120 = 1880

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• 7.

### 1576 ÷ 45.02 + 23.99  * √255 =?

• A.

420

• B.

380

• C.

460

• D.

340

A. 420
Explanation
This can be approximated as 1576 ÷ 45 + 24 * √256

= 35 + 24 * 16 = 420 (Approx)

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• 8.

### ?+ 30.01% of 651 ÷ 25.05% of 59.98 = 135

• A.

68

• B.

122

• C.

78

• D.

128.5

• E.

140

B. 122
Explanation
This can be approximated as ? + 30% of 650 ÷ 25% of 60 = 135

? + 195 / 15 = 135

? = 122

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• 9.

### 3899 ÷ 11.99 - 2379 ÷ 13.97=?

• A.

155

• B.

135

• C.

250

• D.

125

A. 155
Explanation
This can be approximated as 3900 / 12 - 2380 / 14 = 325 - 170 = 155

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• 10.

### Here is an interesting question for you. 7 + 7 ÷ 7 + 7 * 7 - 7 =?

• A.

44

• B.

50

• C.

7

• D.

0

B. 50
Explanation
Apply BODMAS,

7 + 1 + 49 - 7 = 50

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• Current Version
• Mar 15, 2023
Quiz Edited by
ProProfs Editorial Team
• Aug 17, 2017
Quiz Created by
Ashwin

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