Four number-sets have been given, out of which three are alike in some manner and one is different. Select the number-set that is different.
(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its 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.)
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. (12 : 46).
Option 1) (12 : 46) → 12 × 4 - 3 = 45 ≠ 46
Option 2) (10 : 37) → 10 × 4 - 3 = 37
Option 3) (9 : 33) → 9 × 4 - 3 = 33
Option 4) (11 : 41) → 11 × 4 - 3 = 41
Thus, (12 : 46) is odd one.