Question : Directions: Which is the wrong term in the series?
25, 36, 49, 81, 121, 169, 225

Option 1: 36

Option 2: 121

Option 3: 49

Option 4: 81


Team Careers360 16th Jan, 2024
Answer (1)
Team Careers360 17th Jan, 2024

Correct Answer: 36


Solution : Given
25, 36, 49, 81, 121, 169, 225

The square root of each number –
(25) 2 = 5; (36) 2 = 6; (49) 2 = 7; (81) 2 = 9; (121) 2 = 11; (169) 2 = 13; (225) 2 = 15
All other square roots are odd numbers except 6, which is an even number.

So, 36 is the wrong number in the series. Hence, the first option is correct.

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