manu solved 25 questions of his maths assignment. this was 1/8 of total questions.he does not know 1/5 of the rest.how many questions were there in all?how many questions did he not know?
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No. of questions solved= 25
Fraction of questions solved= ⅛.
Therefore, no. of questions in all = 25/⅛
=25x8
=200.
Fraction of answers she doesn't know=1/5 of rest
=1/5 of 175
=35.
Answer: There were 200 questions in all. She did not know 35 questions.
Hope it helps!
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