Question

What number is 70% of 45?

Answer 1

`31.5`

Explanation:

By definition, `70%` means "seventy parts over a hundred`of something, and again, this means that you must divide your quantity in`100`pieces, and then consider only`70# of those pieces.

This should clarify how we must behave:

• Divide `45` in a hundred parts: `45/100=0.45`. This is a part every `100` of `45`, namely the `1%` of `45`.

• We want `70` of these little pieces, so we take `0.45*70=31.5`. This is the `70%` of `45`.