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# Number Series Quiz For IBPS PO 2017

130+ SSC CGL Previous Papers With Solution Free >>

1. 221, 55, 224, 55, 236, ?, 2571

a) 242
b) 55
c) 254
d) 57.25
e) None of these

2. 5, 8, 15, 37, ?, 309.5

a) 99.5
b) 97.5
c) 94.5
d) 98.5
e) 96.5

3. 3, 2, 14, 35, 107, ?

a) 232
b) 218
c) 222
d) 225
e) 242

4. 664, 334, 85.5, 16.25, 4.03125, ?

a) 2.73012
b) 3.17203
c) 2.403125
d) 3.220175
e) 2.220175

5. 12, 14, 32, 102, 416, 2090, ?

a) 15522
b) 12552
c) 13525
d) 17552
e) None of these

6. 4, 6, 9, 13.5, 20.25, 30.375,  ?

a) 40.25
b) 45.5625
c) 42.7525
d) 48.5625
e) None of these

7. 705, 728, 774, 843, 935, 1050, ?

a) 1190
b) 1180
c) 1185
d) 1187
e) None of these

8. 4, 2, 3.5, 7.5, 26.25, 118.125

a) 118.125
b) 26.25
c) 3.5
d) 2
e) 7.5

9. 13, 14, 30, 93, 376, 1885, ?

a) 10818
b) 10316
c) 11316
d) 1131
e) None of these

10. 96, 99, 104, ?, 128, 151

a) 111
b) 112
c) 113
d) 114
e) None of these

### SOLUTIONS

Explanation :
(221-1)/4 = 55
(55+1)*4 = 224
(224-4)/4 = 55
(55+4)*4 = 236
(236-7)/4 = 57.25
(57.25+7)*4 = 257

Explanation :
5 * 1 + 2 + 1 = 8
8 * 1.5 + 4 – 1 = 15
15 * 2 + 6 + 1 = 37
37 * 2.5 + 8 – 1 = 99.5
99.5 * 3 + 10 + 1 = 309.5

Explanation :
3 + 1³ – 2 = 2
2 + 2³ + 4 = 14
14 + 3³ – 6 = 35
35 + 4³ + 8 = 107

Explanation :
664 + 4 ÷ 2 = 334
334 + 8 ÷ 4 = 85.5
85.5 + 12 ÷ 6 = 16.25
16.25 + 16 ÷ 8 = 4.03125
4.03125 + 20 ÷ 10 = 2.403125

Explanation: ×1 + 2, ×2 + 4, ×3 + 6, ×4 + 8, ×5 + 10, ×6 + 12,…….

Explanation: The given series is based on the following pattern :×1.5,×1.5,……..

Explanation:
705 + 1 × 23 = 728
728 + 2 × 23 = 774
774 + 3 × 23 = 843
843 + 4 × 23 = 935
935 + 5 × 23 = 1050
? = 1050 + 6 × 23 = 1050 + 138 = 1188

Explanation: The series is based on the following pattern: ×0.5,×1.5,×2.5,×3.5,×4.5 Obviously, 3.5 Is the wrong number which should be replaced by 3.

Explanation:
The given number series is based on the following pattern :
13 × 1 + 1 = 14
14 × 2 + 2 = 30
30 × 3 + 3 = 93
93 × 4 + 4 = 376
376 × 5 + 5 = 1885
? = 1885 × 6 + 6 = 11316

Explanation:
96+3 = 99
99+(3+2) = 104
104+(5+4) = 113
113+(9+6) = 128
128+(15+8) 151