3. In an examination 80% students pass in English, 25% fail in mathematics. If 10% students fail in both
the subjects and 780 pass in both the subjects. Then the total number of students is ?
1) 800
2) 900 3) 2400
4) 1200
5) None of these
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answer by me it took time to solve
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answer is 5200 and from options none of these
on top you can see I minused - 100- fail %to get pass percentage to find out total no of students hope you understand
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