Select the set in which the numbers are related in the same way as the numbers of the following sets.
(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g. 13 - Operations on 13 such as adding /Subtracting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed).
(121, 81, 2) (88, 54, 2)
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. (77, 18, 5).
The logic used here is:
1st number is divisible by 11.
2d number is divisible by 9.
3rd number is a prime number.
Option 1: (77, 18, 5)
This follows the logic.
Hence, (77, 18, 5) is the odd one out.