Directions (Q. No. 1 to 5): In each of the following questions, five groups of letters are given. Four of them are alike in a certain way while one is different. Select the one which is different.

1. Given Set : (21, 51, 15)
(1) (21, 30, 51)
(2) (21, 35, 41)
(3) (21, 51, 42)
(4) (21, 91, 35)

2. Given Set : (8, 3, 2)
(1) (10, 6, 5)
(2) (63, 8, 3)
(3) (95, 24, 5)
(4) (168, 15, 4)

3. Given Set : (23, 29, 37)
(1) (13, 15, 23)
(2) (17, 21, 29)
(3) (31, 37, 49)
(4) (41, 47, 53)

4. Given Set : (18, 8, 2)
(1) (3, 7, 1)
(2) (11, 12, 10)
(3) (17, 9, 3)
(4) (24, 22, 4)

5. Given Set : (63, 49, 35)
(1) (72, 40, 24)
(2) (72, 48, 24)
(3) (64, 40, 28)
(4) (81, 63, 45)

Answers