Quant 1 Minute Challenge (Number Series, Simplifications)

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| By Ashwin

Ashwin

Community Contributor

Quizzes Created: 6 | Total Attempts: 655

Questions: 10 | Attempts: 73 | Updated: Mar 21, 2023

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Questions and Answers

1.

123, 140, 106, 157, 89, ?
- A.
  
  139
- B.
  
  174
- C.
  
  219
- D.
  
  274
Correct Answer
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
Correct Answer
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
Correct Answer
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
Correct Answer
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
Correct Answer
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
Correct Answer
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
Correct Answer
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
Correct Answer
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
Correct Answer
D. 25

Explanation
40% of 650 ÷ 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
Correct Answer
C. 21

Explanation
674.87~675

59.98~60

35.02~35

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Current Version
Mar 21, 2023

Quiz Edited by
ProProfs Editorial Team
Aug 19, 2017

Quiz Created by
Ashwin

Quant 1 Minute Challenge (Number Series, Simplifications)

123, 140, 106, 157, 89, ?

190, 94, 46, 22, ?, 4

320, 308, 284, 236, 140, ?

3, 4, 9, 28, 113, ?

8, 4, 6, 15, ?, 236.25

√575 ÷ ? * 14.982 = 450

30.012 − 19.982−? = 21.812

820.15 + 2379.85 + 140.01 * 4.99 =?

39.97% of 649.8 ÷ 13.05 = 45.12 – ?

(674.87 + 59.98) ÷ 35.02 =?

√575 ÷ ? * 14.98² = 450

30.01² − 19.98²−? = 21.81²