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3 years ago

I have 30 question test and need 70% to pass how many questions can be wrong

Mathematics

1 answer:

alekssr [168]3 years ago

3 0

Total questions are 30.

70% of 30
=30(70/100)
=21

So, the questions can be wrong are 30-21.
=9 questions..

Thanks!

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______________________________________________________

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