Four number- pairs have been given. out of which three are alike in some manner and one is different. Select the one that is different.
(NOTE: Operations should be performed on the whole numbers without breaking down the numbers into its constituent digits.E.g. 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 3is not allowed.)
17 : 82
31 : 158
19 : 92
47 : 232
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1. i.e. 31 : 158.
Logic used here is : ( First Number x 5 ) - 3
Option 1: 31 : 158
31 x 5 + 3 = 158
As it does follow the same logic so it is the odd one out .
Hence, 31 : 158 is the correct answer.