RRB Clerk Prelims Quantitative Aptitude Questions 2021 (Day-04)

Dear Aspirants, Our IBPS Guide team is providing new series of Quantitative Aptitude Questions for RRB Clerk Prelims 2021 so the aspirants can practice it on a daily basis. These questions are framed by our skilled experts after understanding your needs thoroughly. Aspirants can practice these new series questions daily to familiarize with the exact exam pattern and make your preparation effective.

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Missing number series

Directions (01-05): What value should come in the place of (?) in the following number series?

1) 24, 45, 133, 531, 2655, ?

A.17241

B.14962

C.14931

D.15931

E.17832

2) 10, 16, 28, ?, 78, 120

A.36

B.40

C.44

D.48

E.52

3) 781, 556, 387, 266, 185, ?

A.136

B.98

C.167

D.197

E.150

4) 1716, 2183, 2728, 3357, 4076, ?

A.4129

B.4586

C.4762

D.4871

E.4891

5) 7, 45, 96, 148, 203, ?

A.243

B.245

C.251

D.258

E.261

Approximation

Directions (6-10): What approximate value should come in the place of (?) in the following questions?

6) 719.909 ÷ √15.61 + 119.91% of 199.98= ? + 32.891 * √99

A.70

B.80

C.90

D.100

E.110

7) 31.05% of 599.879 + 2609.91 ÷ 86.911 + 63.912 % of 124.913= ?

A.290

B.293

C.286

D.276

E.296

8) √624 % of 320.09 + √195 * 7.912 – 1007.99 ÷ √325= ?

A.128

B.132

C.136

D.142

E.146

9) 34.91 % of 480.081+ ? * √170 = √120 * (429.181 ÷ 12.981)

A.12

B.13

C.15

D.18

E.17

10) 120.981 – √530 * 4.989 + 405.912 ÷ √840= ?

A.10

B.15

C.20

D.25

E.30

Answers :

1) Answer: D

24 * 2 – 3 = 45

45 * 3 – 2 = 133

133 * 4 – 1 = 531

531 * 5 – 0 = 2655

2655 * 6 – (-1) = 15931

2) Answer: D

10 + (2 * 3) = 16

16 + (3 * 4) = 28

28 + (4 * 5) = 48

48 + (5 * 6) = 78

78 + (6 * 7) = 120

3) Answer: A

781 – 15² = 556

556 – 13² = 387

387 – 11² = 266

266 – 9² = 185

185 – 7² = 136

4) Answer: E

12³ – 12 = 1716

13³ – 14 = 2183

14³ – 16 = 2728

15³ – 18 = 3357

16³ – 20 = 4076

17³ – 22 = 4891

5) Answer: B

7 + (19 * 2) = 45

45 + (17 * 3) = 96

96 + (13 * 4) = 148

148 + (11 * 5) = 203

203 + (7 * 6) = 245

6) Answer: C

719.909 ÷ √15.61 + 119.91% of 199.98 = ? + 32.891 * √99

180 + 240 = ? + 330

? = 90

7) Answer: E

31.05% of 599.879 + 2609.91 ÷ 86.911 + 63.912 % of 124.913 = ?

186 + 30 + 80 = ?

296 = ?

8) Answer: C

√624 % of 320.09 + √195 * 7.912 – 1007.99 ÷ √325 = ?

80 + 112 – 56 = ?

136 = ?

9) Answer: C

34.91 % of 480.081 + ? * √170 = √120 * (429.181 ÷ 12.981)

168 + ? * 13 = 11 * 33

? * 13 = 195

? = 15

10) Answer: C

120.981 – √530 * 4.989 + 405.912 ÷ √840 = ?

121 – 115 + 14 = ?

20 = ?