Missing Number (SSC CGL 2018 Tier-1)

(3rd term - 2nd term) ⇒ (Total term) ² = 1st term

9 - 7 ⇒ 2,  2 ^ 3 = 8

5 - 2 ⇒ 3,  3 ^ 3 = 27

7 - 3 ⇒ 4,  4 ^ 3 = 64

Hence, "64" is the correct answer.

(3rd term - 2nd term) = (Total term) ² = (1st term)

20 - 12 = 8,  8 ^ 2 = 64

24 - 17 = 7,   7 ^ 2 = 49

8 - 4 = 4,      4 ^ 2 = 16

Hence, "16" is the correct answer.

(1st term ^3 + 2nd term ^2) = 3rd term

4 ^ 3 + 5 ^ 2 = 64 + 25 = 89

3 ^ 3 + 4 ^ 2 = 27 + 16 = 43,

1 ^ 3 + 2 ^ 2 = 1 + 4 = 5

Hence, "5" is the correct answer.

(1st term + 2nd term/2) = 3rd term

35 + 32/2 = 35 + 16 = 51 ;

28 + 18/2 = 28 + 9 = 37 ;

Similarly, 40 + 14/2 = 40 + 7 = 47

So, the missing number is 40.

(1st term/2 + 2nd term) = 3rd term

18/2 + 17 = 9 + 17 = 26

28/2 + 13 = 14 + 13 = 27

Similarly, 50/2 + 11 = 25 + 11 = 36

Hence, "36" is the correct answer.

(1st term + 2nd term)^ 2 = 3rd term

7 ^ 2 + 8 ^ 2 = 49 + 64 = 113

Similarly, 14 ^ 2 + 9 ^ 2 = 196 + 81 = 277

Hence, "277" is the correct answer.

(1st term + 3rd term) = (Total^ 3) = 2nd term

2 + 3 = 5, 5 ^ 3 = 125

3 + 4 = 7, 7 ^ 3 = 343

5 + 1 = 6, 6 ^ 3 = 216

Hence, "1" is the correct answer.