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Which is the wrong term in the series? ...

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

A

36

B

121

C

49

D

81

Text Solution

Verified by Experts

The correct Answer is:
A
Except 36, all others are perfect squares of odd numbers.
`25 = 5 xx 5, 49 = 7 xx 7`,
`81 = 9 xx 9, 121 = 11 xx 11`
`169 = 13 xx 13, `
`225 = 15 x 15 `
But,
`36 = 6 xx 6`
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