PREPARATORY QUESTIONS

WRONG NUMBER SERIES

PREPARATORY SET-99 (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

77   78   159   472   1889   9446   56677

(1) 159

(2) 472

(3) 1889

(4) 56677

(5) 77

Question No : 2

2159   1967   1782   1611   1461   1339   1254

(1) 1967

(2) 2159

(3) 1461

(4) 1254

(5) 1611

Question No : 3

854   886    923   964   1007   1054   1107

(1) 923

(2) 1007

(3) 854

(4) 1054

(5) 1107

Question No : 4

53760    6720   960   160   80    8

(1) 8

(2) 80

(3) 960

(4) 6720

(5) 160

Question No : 5

80   120    300   1040    4725   25987.5

(1) 120

(2) 1040

(3) 4725

(4) 25987.5

(5) 300