Series for SBI PO/Clerk 2018: 14 May

Series for SBI PO/Clerk 2018: 14 May

Series for SBI PO/Clerk 2018: 14 May

Directions (Q. 1-5) : In this question a number series is given. After the series a number is given followed by (A), (B), (C), (D) and (E). You have to complete the series starting with the given number following the sequence of the original series and answer the question that follows the series.

Ques : 1
12     12.25    14.5    20.75    33    53.25
8       (A)        (B)        (C)     (D)    (E)
What will come in place of (C) ?
1: 12
2: 16.75
3: 12.25
4: 14.5
5: 18.75

Ques : 2
16    9    11.25    20.875    48   129
12    (A)    (B)       (C)       (D)    (E)
What will come in place of (D) ?
1: 36
2: 40
3: 42
4: 45
5: 35

Ques : 3
24     47    98    187    390    755
18     (A)    (B)    (C)    (D)    (E)
What will come in place of (A) ?
1: 35
2: 32
3: 36
4: 45
5: 42

Ques : 4
36    9       9    20.25    81    506.25
28   (A)    (B)    (C)    (D)       (E)
What will come in place of (B) ?
1: 14
2: 7
3: 8
4: 16
5: 12

Ques : 5
6    16    67    331    1991    13931
4   (A)    (B)    (C)    (D)       (E)
What will come in place of (C) ?
1: 218
2: 188
3: 196
4: 211
5: 224

Answers:
  1. The number series is : +(0.5)2, +(1.5)2, +(2.5)2, +(3.5)2, +(4.5)2,……….Hence, C = 16.75
  2. The number series is : ×(0.5) + 12, ×1 +(1.5)2, ×1.5 + (2)2, ×2 + (2.5)2, ×2.5 + 32,…….. Hence, D = 42
  3. The number series is : × 2 – 12, × 2 + 22, × 2 – 32, × 2 + 42, × 2 – 52,………..Hence, A = 35
  4. The number series is :×(.5)2, ×(1)2, ×(1.5)2, ×(2)2, ×(2.5)2, ……….Hence, B = 7
  5. The number series is : × 3 – 2, × 4 + 3, × 5 – 4, × 6 + 5, × 7 – 6,…….


Hence, C = 211
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