Which number is similar to the numbers in the given set ?
Given set : 9 3 1 4, 6 4 2 7, 4 6 2 8, 5 3 2 9, 3 1 5 4, 7 4 3 7 , 2 1 1 8

Options

A. 4 6 5 1
B. 9 1 1 3
C. 2 4 5 3
D. 8 7 1 9

Answer

D

Explanation

All the numbers in the given set follows the pattern : Product of the first and last digits is a multiple of Sum of the middle two digits i.e.
`9 xx 4 = 36` is a multiple of (3 + 1) = 4
` 6 xx 7 = 42 ` is a multiple of ( 4 + 2) = 6
` 4 xx 8 = 32` is a multiple of ( 6 + 2) = 8
`5 xx 9 = 45` is a multiple of ( 3 + 2) = 5
` 3 xx 4 = 12` is a multiple of (1 + 5 ) = 6
`7 xx 7 = 49` is a multiple of ( 4 + 3) = 7
` 2 xx 8 = 16` is a multiple of (1 + 1) = 2
Similarly, ` 8 xx9 = 72 ` is a multiple of ( 7 + 1 ) = 8
Therefore, .8719. belongs to the given set