Question

What percent of 520 is 15?

Answer 1

2.88%

Explanation:

This gives us a pair of simple equations:

100% = 520(1)

x% = 15(2)

By simply dividing equation 1 by equation 2 and taking note of the fact that both of equations have the same unit (%); we have

`(100)/(x) =(520)/(15)`

Taking the inverse (or reciprocal) of both sides yields

`(x)/(100) =(15)/(520)`

-> x = 2.88%

Therefore, 15 is 2.88% of 520