in a class of 300 student , all are take a test exam in subject 90 fail in economic, 100 fail in statistics, 96fail in both statistics and mathepar, 60 fail in economic and statistics, 64 fail in statistics and math and 70 fail in economic and math paper 50 student fail in all subject find the number of student who fail atleast 1 subject
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Mai Bhoot nalayaq hoo muje iska jawaab nahi aata
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