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# Memory Based Questions (1st Slot) IBPS PO Prelims 7th Oct 2017

Memory Based Questions (1st Slot) IBPS PO Prelims Held on 7th Oct 2017:

Dear Readers, IBPS PO Prelims Held on 7th Oct 2017 (1st Slot) has finished; here we have given Memory based Number Series, questions asked in the examination. Candidates those who are all going to write the examination can check this pattern and make use it.

Number Series Asked in (1st Slot) IBPS PO Prelims Held on 7th Oct 2017:

1). 17, 98, 26,89, 35, ?

Logic:

17+9 = 26; 26+9 = 35

98 – 9 = 89;   89-9=80

2). 2, 17, 89, 359, 1079,?

Logic:

2*6 + 5 = 17
17*5 + 4 = 89
89 * 4 + 3 = 359
359 * 3 + 2 = 1079
1079 * 2 + 1 = 2159

3). 3, 5, 15, 45, 113, ?

Logic:

+1^3+1, +2^3+2, +3^3+3, +4^3+4, +5^3+5

4). 7, 4.5, 5.5, 12, 49, ?

Logic:

7 × 0.5 + 1 = 4.5

4.5 × 1 + 1 = 5.5

5.5 × 2 + 1 = 12

12 × 4 + 1 = 49

49 × 8 + 1 = 393

5). 3240, 540, 108, 27, ?, 4.5

Logic:

3240/6 = 540

540/5 = 108

108/4 = 27

27/3 = 9

9/2 = 4.5