Series Completion - Study Mode

[#146] 22, 24, 28, ?, 52, 84
Correct Answer

(A) 36

Explanation

Solution: The pattern is + 2, + 4, + 8, + 16,..... So, missing term = 28 + 8 = 36.

[#147] 3, 15, ?, 63, 99, 143
Correct Answer

(B) 35

Explanation

Solution: The terms of the given series are (2 2 - 1), (4 2 - 1),....., (8 2 - 1), (10 2 - 1), (12 2 - 1). So, missing term = (6 2 - 1) - (36 - 1) = 35.

[#148] 90, 180, 12, 50, 100, 200, ?, 3, 50, 4, 25, 2, 6, 30, 3
Correct Answer

(A) 150

Explanation

Solution: Clearly, 90 = 30 x 3, 180 = 6 x 30, 12 = 2 x 6, 50 = 25 x 2, 100 = 4 x 25, 200 = 50 x 4. So, missing term = 3 x 50 = 150.

[#149] 48, 24, 96, 48, 192, ?
Correct Answer

(C) 96

Explanation

Solution: The pattern is ÷ 2, x 4, ÷ 2, x 4, ..... So, missing term = 192 ÷ 2 = 96.

[#150] 2, 15, 41, 80, ?
Correct Answer

(D) 132

Explanation

Solution: The pattern is + 13, + 26, + 39,..... So, missing term = 80 + 52 = 132.