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
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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