Discussion
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 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.)
Answer: B
The different pair is 14 - 2744.
In the other pairs the second number is the cube of the first plus 3: 163 + 3 = 4096 + 3 = 4099, 133 + 3 = 2197 + 3 = 2200 and 113 + 3 = 1331 + 3 = 1334. For 14 the cube is 2744 itself, with nothing added.
So 14 - 2744 does not follow the rule shared by the other three pairs.
You can also see this by comparing each second number with the cube of the first: 16 cubed is 4096, 13 cubed is 2197 and 11 cubed is 1331, and each pair is 3 above the cube. For 14, the cube is 2744, exactly the second number, so this pair does not add 3 and is the odd one out.
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