# Quant 1 Minute Challenge (Number Series, Simplifications)

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Ashwin
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Quizzes Created: 6 | Total Attempts: 647
Questions: 10 | Attempts: 72

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• 1.

### 123, 140, 106, 157, 89, ?

• A.

139

• B.

174

• C.

219

• D.

274

B. 174
Explanation
123 +17 = 140
140-34 = 106
106+ 51 = 157
157- 68=89
89 + 85 = 174.

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• 2.

### 190, 94, 46, 22, ?, 4

• A.

19

• B.

15

• C.

10

• D.

8

• E.

6

C. 10
Explanation
190*0.5 - 1 = 94
94*0.5 - 1 = 46
46*0.5 - 1 =22
22*0.5 - 1 =10.

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• 3.

### 320, 308, 284, 236, 140, ?

• A.

110

• B.

-52

• C.

52

• D.

-110

B. -52
Explanation
320-12 = 308
308 - 24 = 284
284-48 = 236
236 - 96 = 140
140 - 192 = -52.

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• 4.

### 3, 4, 9, 28, 113, ?

• A.

384

• B.

566

• C.

646

• D.

782

B. 566
Explanation
3*1+1 = 3+1= 4
4*2 + 1 = 8+1 = 9
9*3 + 1 = 27+1 = 28
28*4+1 = 112+1 = 113
113*5 + 1 = 565 + 1 = 566

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• 5.

### 8, 4, 6, 15, ?, 236.25

• A.

64.5

• B.

52.5

• C.

84

• D.

36

B. 52.5
Explanation
8 * 0.5 = 4
4 * 1.5 = 6
6 * 2.5 = 15
15 * 3.5 = 52.5

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• 6.

### √575 ÷ ? * 14.982  = 450

• A.

15

• B.

10

• C.

7

• D.

4

• E.

12

E. 12
Explanation
approximate 575 as 576, 14.98 as 15.

Apply BODMAS rule.

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• 7.

### 30.012 − 19.982−? = 21.812

• A.

49

• B.

50

• C.

39

• D.

16

D. 16
Explanation
Take 30.01 as 30, 19.98 as 20 and 21.81 as 22

900 - 400 - ? = 484

? = 16

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• 8.

### 820.15 + 2379.85 + 140.01 * 4.99 =?

• A.

4400

• B.

3970

• C.

3900

• D.

4210

C. 3900
Explanation
820.15 ~ 820

2379.85 ~ 2380

140.01 ~ 140

4.99 ~5

Apply BODMAS rule

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• 9.

### 39.97% of 649.8 ÷ 13.05 = 45.12 – ?

• A.

5

• B.

10

• C.

20

• D.

25

• E.

30

D. 25
Explanation
40% of 650 รท 13 = 45 - ?

40% 50 = 45 - ?

? = 25

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• 10.

### (674.87 + 59.98) ÷ 35.02 =?

• A.

11

• B.

17

• C.

21

• D.

29

C. 21
Explanation
674.87~675

59.98~60

35.02~35

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