Select the set in which the numbers are NOT related in the same way as are the numbers of the following set.
(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.)
(8, 13, 21) (13, 18, 31)
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. (11, 16, 29).
(8, 13, 21): 8 + 5 = 13, 13 + 8 = 21
(13, 18, 31): 13 + 5 = 18, 18 + 13 = 31
Option 1: (11, 16, 29): 11 + 5 = 16, 16 + 11 = 27
This does not follow the logic.
Hence, (11, 16, 29) is the odd one out.