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How much is 40 percent of 21

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We think you reached us looking for answers like: What is 40 (40%) percent (%) of 21 (21)? Or may be: How much is 40 percent of 21. See the solutions to these problems below.

How to work out percentages - Step by Step

Here are the solutions to the questions stated above:

1) What is 40% of 21?

Always use this formula to find a percentage:

% / 100 = Part / Whole replace the given values:

40 / 100 = Part / 21

Cross multiply:

40 x 21 = 100 x Part, or

840 = 100 x Part

Now, divide by 100 and get the answer:

Part = 840 / 100 = 8.4

2) 40 is what percent of 21?

Use again the same percentage formula:

% / 100 = Part / Whole replace the given values:

% / 100 = 40 / 21

Cross multiply:

% x 21 = 40 x 100

Divide by 21 and get the percentage:

% = 40 x 100 / 21 = 190.47619047619%

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