. In an examination, 77% of the studentspassed in Science and 66% pass – InterviewSolution

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1.	. In an examination, 77% of the studentspassed in Science and 66% passed in Hindi,13% students failed in both the subjects and280 passed in both the subjects. Find thetotal number of students
Answer» suppose total no. of students in xso 0.77x passed in science and 0.66x passed in Hindi.0.13x failed in both subjects.so 0.77x+0.66x+0.13x-x=0.56x passed in both the subjects.so 0.56x=280x=280/0.56x=500

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