Question

I have a daily allowance of 70grm but have only used 48 what percentage do i have left

Answer 1

You have 31.43% of your allowance left.

Explanation:

This question can be solved using a rule of three.

Your initial amount, of 70, is 100%.

The remaining amount, of 70 - 48 = 22, is x%. So

70 - 100%

22 - x%

`70x = 100*22`

`x = (100*22)/(70)`

`x = 31.43`

You have 31.43% of your allowance left.