The second number in the given number-pairs is obtained by performing certain mathematical operation(s) on the first number. The same operation(s) is/are followed in all the number-pairs, except one. Find that odd number-pair.
(NOTE: The relation should be found without breaking down the numbers into its constituent digits)
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 784 : 961.
Logic: Each pair is the square of two consecutive numbers.
Except option 1 all follow the same pattern.
Option 1) 784 : 961 ⇒ 784 = (28)2 and 961 = (31)2