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Since the quiz/test (or whatever it may be) is out of '40' we know that 40 out of 40 is 100%, or the full marks.

Now, since we know that, we can divide 28 by 40.

28/40 = 0.7

After, we take this number and multiply it by 100 to make it equal to the percentage..

0.7 x 100 = 70

So, 28 out of 40 is equal to 70%

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15y ago

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