a ×20/100 =b b=a/5 … (1) ATQ- =20× a /5 % =4×a% =4% of a.
In each of the following giving number series, a wrong number is given. Find out the wrong number?
82, 81, 86, 110, 168, 287
16, 16, 32, 128, 1024, 16384
-5, 20, 9, 88, 94, 252
24, (24 + 2p), (24 + 4p), (24 + 6p), (24 + 8p), (24 + 10p)
24, 36, 60, 108, 204, 404
22, 23, 31, 57, 122, 247
71 81 61 101 51 181
-1236, -724, 5, 1005, 2336, 4062
412, 320, 241, 169, 106, 52
164, 20, 216, -40, 284, -112