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
10 15 24 37 54 75 99
(1) 99
(2) 75
(3) 24
(4) 15
(5) 54
Question No : 2
7 10 12 14 17 19 22 22
(1) 10
(2) 17
(3) 19
(4) 22
(5) None of these
Question No : 3
63 70 81 105 143 198
(1) 105
(2) 143
(3) 81
(4) 70
(5) 63
Question No : 4
327 369 525 546 666 882
(1) 666
(2) 882
(3) 546
(4) 525
(5) 369
Question No : 5
1 4 7 31 91 211 421
(1) 1
(2) 4
(3) 7
(4) 31
(5) 211