Question

5 is 50% of what number?

Answer 1

To get 50% of any given number y, we multiply it by 0.5

This way, we'll have that:

$0.5y=5$

Solving for y,

$0.5y=5\rightarrow y=\frac{5}{0.5}\rightarrow y=10$

Thereby, we can conclude that 5 is 50% of 10