Three of the following numbers are alike in a certain way, and one is different. Pick the odd one out.
(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 /deleting /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. 11 – 882
3 - 72 = (3 × 8) × 3 = 72
4 - 128 = (4 × 8) × 4 = 128
7 - 392 = (7 × 8) × 7 = 392
11 - 882 = (11 × 8) × 11 = 968