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8% of what number is 32

Step by step, with the reason for every step · Percent · Foundations

Step by step

The question

Question: 32 is 8% of what number?

8% of ? = 32

We write it like this: 8% of the number is 32.

32 is a part.

The whole number is what we want.

? = the whole number

Careful!

Many people work out 8% of 32.

But 32 is not the whole.

It is only 8% of it.

Careful: not 8% of 32 ✗

1 Find 1%

8% is 8 lots of 1%.

So we find 1% first.

8% = 8 × 1%

1% is 32 divided by 8: 4.

1% of ? = 32 ÷ 8 = 4

2 Find 100%

The whole number is 100%: 100 lots of 1%.

100% = the whole

4 times 100 is 400.

100% of ? = 4 × 100 = 400

So 32 is 8% of 400.

3 Check

Let's check: is 8% of 400 really 32?

8% is 8/100.

Of means times.

8% of 400 = 8100 × 400

400 divided by 100 is 4.

8 times 4 is 32.

= 8 × 4 = 32 (400 ÷ 100 = 4)

We get 32.

So it is right!

Let's look back.

First: find 1%.

Then: find 100%.

Last: check.

Answer
100% of ? = 4 × 100 = 400

Your turn

Try this one yourself, then check:

9% of ? = 27
Show the answer
300

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