SSC Selection Post 2025 PYQ — Question 78

SSC Selection Post - Matriculation Level - 1st August 2025 - Shift 2 • Reasoning • Q78

Which number does not match the pattern in the sequence 13, 21, 34, 55, 90

Show answer & explanation

Correct answer: A

Explanation

13 + 21 = 34

21 + 34 = 55

34 + 55 = 89 (but given is 90)

So the correct next term should be 89, but given is 90, which doesn't match the pattern.

Correct answer: 90