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-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.)
9 : 720
5 : 134
7 : 334
11 : 1322
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 5 : 134.
9 : 720 → 93 - 9 = 720
5 : 134 → 53 - 9 = 116 ≠ 134
7 : 334 → 73 - 9 = 334
11 : 1322 → 113 - 9 = 1322