Step by step
The question
Question: 24 is 120% of what number?
We write it like this: 120% of the number is 24.
24 is a part.
The whole number is what we want.
Careful!
Many people work out 120% of 24.
But 24 is not the whole.
It is only 120% of it.
1 Write the percent as a fraction
Percent means out of 100.
So 120% is 120/100.
120 and 100 can both be divided by 20.
So 120% is 6/5: 6 parts, when 5 parts make the whole.
2 Draw the whole
3 Find one part
6 parts make 24.
So one part is 24 divided by 6.
That is 4.
Every part is 4.
4 Find the whole
The whole is 5 parts.
5 times 4 is 20.
So 24 is 120% of 20.
5 Check
Let's check: is 120% of 20 really 24?
120% is 6/5.
Of means times.
20 divided by 5 is 4.
6 times 4 is 24.
We get 24.
So it is right!
Let's look back.
First: write the percent as a fraction.
Then: draw the whole.
Then: find one part.
Then: find the whole.
Last: check.