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SSC CGL 2020 PYQ — Question 87

SSC CGL - 5th March 2020 Shift 2 • Reasoning • Q87

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Select the number that can replace the question mark (?) in the following series.

61, 63, 65, 77, 89, ? , 149, 205

Show answer & explanation

Correct answer: D

Explanation

The correct answer is option 4 i.e 119.

Understanding

Given series: 61, 63, 65, 77, 89, ? , 149, 205

The logic used here is:

61 + (12 + 1) = 63

63 + (22 - 2) = 65

65 + (32 + 3) = 77

77 + (42 - 4) = 89

89 + (52 + 5) = 119

119 + (62 - 6) = 149

149 + (72 + 7) = 205

The missing term in the series is 119.

Hence, option 4 is the correct answer.