If 8 @ 2 = 6 and 15 @ 5 = 10, find 20 @ 4.
A24
B5
C80
D16CORRECT
Common EntranceQuantitative ReasoningOperations
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Why the answer is D, and why the others tempt you.
The rule is to subtract the second number from the first: 20 - 4 = 16.
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