420 percent of what number is 21?
21 is 420% of 5
Steps to solve "21 is 420 percent of what number?"
- We have, 420% × x = 21
- or, 420100 × x = 21
- Multiplying both sides by 100 and dividing both sides by 420,
we have x = 21 × 100420 - x = 5
If you are using a calculator, simply enter 21×100÷420, which will give you the answer.
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