Dear Aspirants, Our IBPS Guide team is providing new series of Quantitative Aptitude Questions for RRB PO 2020 Prelims 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.
Wrong number series
Direction (1-5): Find out the wrong number in the following number series.
1) 19, 9, 8, 14, 46, 230
A) 9
B) 14
C) 230
D) 46
E) 8
2) 1, 4, 22, 103, 427, 1640
A) 1640
B) 427
C) 103
D) 22
E) 4
3) 13, 229, 354, 420, 445, 453
A) 453
B) 420
C) 229
D) 354
E) 445
4) 3, 21, 42, 73, 103, 133
A) 73
B) 103
C) 133
D) 21
E) 42
5) 326, 245, 181, 132, 96, 70
A) 245
B) 96
C) 70
D) 181
E) 132
Simplification
Direction (6-8): What value should come in the place of (?) in the following questions?
6) 160% of 440 + 80% of? = 16 * √2916
A) 280
B) 300
C) 200
D) 340
E) 360
7) √5329 +? = 12 * 288 ÷ √1024
A) 35
B) 37
C) 39
D) 41
E) 45
8) 624 ÷ 13 + 60 % of 210 – 22 * 12 =?
A) -90
B) -80
C) -70
D) -60
E) -50
Direction (9-10): What approximate value should come in the place of (?) in the following questions?
9) 22.022 – 33.954 = (?)2 + 3.12 * √1765
A) 16
B) 17
C) 18
D) 19
E) 20
10) 19.93 * 24.893 + 29.908 * 40.01 – ? = 49.912 * 11.901
A) 1150
B) 1200
C) 1100
D) 1250
E) 1300
Answers :
Directions (1-5):
1) Answer: C
19 * 1 – 10 = 9
9 * 2 – 10 = 8
8 * 3 – 10 = 14
14 * 4 – 10 = 46
46 * 5 – 10 = 220
The wrong number is 230
2) Answer: A
1 + 31 * 1 = 4
4 + 32 * 2 = 22
22 + 33 * 3 = 103
103 + 34 * 4 = 427
427 + 35 * 5 = 1642
The wrong number is 1640
3) Answer: B
13 + 63 = 229
229 + 53 = 354
354 + 43 = 418
418 + 33 = 445
445 + 23 = 453
The wrong number is 420
4) Answer: E
3 + (9 * 2) = 21
21 + (8 * 3) = 45
45 + (7 * 4) = 73
73 + (6 * 5) = 103
103 + (5 * 6) = 133
The wrong number is 42
5) Answer: C
326 – 92 = 245
245 – 82 = 181
181 – 72 = 132
132 – 62 = 96
96 – 52 = 71
The wrong number is 70
Directions (6-8):
6) Answer: C
160% of 440 + 80% of? = 16 * √2916
704 + 4/5 *? = 864
? = 200
7) Answer: A
√5329 +? = 12 * 288 ÷ √1024
73 +? = 12 * 9
? = 35
8) Answer: A
624 ÷ 13 + 60 % of 210 – 22 * 12 =?
48 + 126 – 264 =?
-90 =?
Directions (9-10):
9) Answer: C
22.022 – 33.954 = (?)2 + 3.12 * √1765
222 – 34 =?2 + 3 * √1764
484 – 34 =?2 + 3 * 42
?2 = 324
? = 18
10) Answer: C
19.93 * 24.893 + 29.908 * 40.01 – ? = 49.912 * 11.901
20 * 25 + 30 * 40 – ? = 50 * 12
20 * 25 + 30 * 40 – ? = 50 * 12
500 + 1200 – ? = 600
? = 1100
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This post was last modified on October 25, 2021 1:23 pm