Some equations are solved on the basis of certain rule. Following the same rule find out the missing number.
1[3]4 = 10, 3[4]6 = 26, 4[5]7 = ?`

Options

A. 18
B. 24
C. 32
D. 38

Answer

D

Explanation

The pattern is as follows:
`1xx 4+3 xx 2 = 10 , 3 xx 6 + 4 xx 2 = 26`
Therefore, Missing number = `4xx7+5 xx 2 = 38` .