Railway Recruitment Board Reasoning — Question 1737

Question

Choose the odd one out: 25, 36, 49, 50.

1. 25
2. 36
3. 49
4. 50

Correct answer

D — 50

Explanation (English)

25 = 5 squared, 36 = 6 squared and 49 = 7 squared are perfect squares; 50 is not.

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