Question

Brian was thinking of a number. Brian

halves it and gets an answer of 1.6. What
was the original number?

Answer 1

`3.2`

Explanation:

let the number be x

`x * (1)/(2) = 1.6 \\ (x)/(2) = 1.6 \\ x = 2 * 1.6 = 3.2`