Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the number-pair that is different.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. 324 : 64.
The logic followed here is:
169 : 55 = 132 : 55
289 : 70 = 172 : 70
256 : 61 = 162 : 61
324 : 64 = 182 : 82
Only in option 4, both sides have a perfect square.
Hence, the correct answer is 324 : 64.