Exams › SSC CGL (Prelims) › General

The following series has a pattern. Identify the incorrect pair: 4, 7, 14, 17, 35, 37, 74, 78

1. 14, 35
2. 4, 37
3. 7, 78
4. 35, 78

Correct answer: 35, 78

Solution

The series follows an alternating pattern of +3, ×2, +3, ×2, +2, ×2, +4? On checking carefully, the intended pattern is that each odd term is transformed to the next by adding 3, and each even term by doubling. The pair 35, 78 does not fit the pattern, so it is incorrect.

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