Answers

21 is 4200% of 0.5

Steps to solve "21 is 4200 percent of what number?"

1. We have, 4200% × x = 21
2. or, 4200/100 × x = 21
3. Multiplying both sides by 100 and dividing both sides by 4200,
   we have x = 21 × 100/4200
4. x = 0.5
   

   If you are using a calculator, simply enter 21×100÷4200, which will give you the answer.

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