EduGoog

Given set : 4718, 5617, 6312, 8314

Option:
A. 2715
B. 3410
C. 5412
D. 6210
Answer: C . 5412

Justification: In all numbers, the product of first and last digits is a multiple of the sum of middle two digits.
Thus, 4 * 8 = 32 is multiple of (7 + 1) i.e. 8,
5 * 7 = 35 is a multiple of (6 + 1) i.e. 7 and so on.

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