Question

32 is 40% of what number?

Answer 1

`80`

Explanation:

if `32 " is " 40%`

Then what number ? is `100%`?

Ans = `100/40xx32`

`= 5 xx 16`

`= 80`

`therefore 32 = 40% " of " 80`

Answer 2

`80`

Explanation:

Percentages can always be written as a direct proportion:

`32` is to `40%` as what number is to `100%`?

`32/40 = x/100" "(larr"number")/(larr"percent")`

`x= (32xx100)/40`

`x = 80`

You can also write an equation and solve it:

Let the unknown number be `x`.

`40%` of that number is equal to `32`

`40/100 xx x = 32`

`x = 32 xx40/100`

`x = 80`