Number Series for SBI PO : Set 47

1)5    10    20   ?   80    160

a) 30

b) 60

c) 40

d) 50

e)None of these

2)1598    798    398    198   ?   48

a) 56

b) 74

c) 68

d) 98

e)None of these

3)50, 26, 14, ?, 5, 3.5

a) 6

b) 8

c) 10

d) 12

e)None of these

4)3, 23, 43, ?, 83, 103

a) 33

b) 53

c) 63

d) 73

e)None of these

5)748, 737, 715, 682, 638, ?

a) 594

b) 572

c) 581

d) 563

e)None of these

Direction.6-10) What should come in place of question mark (?) in the following number series

6)9, 25, 49, 81, ?, 169

a) 100

b) 64

c) 81

d) 121

e)None of these

7)668, 656, 632, 584, ?, 296

a) 392

b) 438

c) 488

d) 536

e) None of these

8)9, 73, 105, 121, 129, ?, 135,

a) 13

b) 131

c) 133

d) 134

e)None of these

9)3, 7, 15, ?, 63

a) 19

b) 27

c) 31

d) 35

e)None of these

10)2, 6, ?, 1446, 2090918

a) 36

b) 42

c) 38

d) 45

e)none of these