Question

In the following question numbers in the given group possesses a definite property except one number. Find that odd number out of the group. 144/13, 225/14, 289/16, 400/19, 441/20, 625/24, 900/29
options are
400/19
289/16
900/29
144/13
​

Answer 1

Odd one out is = 289/16

Explanation:

Given: 144/13, 225/14, 289/16, 400/19, 441/20, 625/24, 900/29

Find: The odd one out.

Solution:

All numbers in the numerators are perfect squares.  

They are: 12²/13, 15²/14, 17²/16, 20²/19, 21²/20, 25²/24, 30²/29

All numbers in the denominators are not perfect squares except 16 which is 4².

So 289/16  = 17²/4² is the odd one out of the given list.

Option 2 is the answer.