PREPARATORY QUESTIONS

WRONG NUMBER SERIES

PREPARATORY SET-59 (MODERATE)

Directions (Qs.1 to 5): In each of the following questions a number series is given. In each series only one number is wrong that does not follow the given pattern of the series. Find out that wrong number.

Question No : 1

12    15   27   42   69    110    180

(1) 180

(2) 69

(3) 15

(4) 27

(5) 110

Question No : 2

18   20   43   133   537   2690

(1) 20

(2) 2690

(3) 43

(4) 537

(5) 133

Question No : 3

6   8.5   16.5   66.0   269.5   1354.0

(1) 16.5

(2) 8.5

(3) 66.0

(4) 1354.0

(5) 269.5

Question No : 4

42   41   78   225   878   4395

(1) 878

(2) 4395

(3) 41

(4) 225

(5) 78

Question No : 5

20   22   47   145   585   2920

(1) 2920

(2) 145

(3) 585

(4) 47

(5) None of these