PREPARATORY QUESTIONS

WRONG NUMBER SERIES

PREPARATORY SET-87 (HARD)

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

65520   9360   1560   315   78   26

(1) 315

(2) 65520

(3) 9360

(4) 78

(5) 1560

Question No : 2

19   133   798   3980   15960   47880

(1) 798

(2) 3980

(3) 15960

(4) 47880

(5) 133

Question No : 3

2592    1296    1944   4860   17010   76540

(1) 1296

(2) 4860

(3) 17010

(4) 76540

(5) 1944

Question No : 4

120    660   370   579   390   570

(1) 660

(2) 370

(3) 570

(4) 390

(5) 579

Question No : 5

5679     5560    5322   4965   4489   3895

(1) 3895

(2) 5322

(3) 5560

(4) 5679

(5) 4965