Question

21 is what percent of 50?

Answer 1

21 is 42% of 50.

Explanation:

"Percent" or "%" means "out of 100" or "per 100",

So we can say `21/50 = x/100`

Solving for `x` gives:

`100 * 21/50 = 100 * x/100`

`2 * 21 = cancel(100) * x/cancel(100)`

`x = 42`