Find out the number that does not belong to the group for lack of common property. (169, 289, 361, 442, 484, 729)

Options

A. 484
B. 442
C. 361
D. 289

Answer

B

Explanation

Except the number 442,all other numbers are perfect squares,
`169 = 13 xx 13, 289 =17 xx 17`
` 361 = 19 xx19,`
`442 =21.023 xx 21.023`
`484 =22 xx 22, 729 = 27 xx 27`