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on an examination, 36 out of 40 students passed. express the failure rate as a percent.

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Answer:

36 out of 40 students passed, leaving 4 students with failure.

So 4 out of the 40 students have not passed.

To convert a fraction into a percentage, we must multiply the fraction by 100;

4/40 x 100 = 10%, have not passed.

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