Question

Find a in 211afour= 150

Answer 1

a = 2

Explanation:

Given the expression:

`2111_(four) = 150`

This can be expressed as:

`(2*4^3)+(1*4^2)+(1*4^1)+(a*4^0) = 150\\128+16+4+a = 180\\148 + a = 150\\a = 150 - 148\\a = 2`

Hence the value of a is 2