1.  Choose one number which is similar to the numbers in the given set.
Given set : 4718, 5617, 6312, 8314

A. 2715
B. 3410
C. 5412
D. 6210

Answer: Option C

Explanation:

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