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sammy [17]
3 years ago
10

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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