Among 100 students 32 study mathematics , 20 study physics , 45 study biology , 15 study biology and mathematics , 7 study mathematics and physics , 10 study physics and biology and 30 do not study any of three subjects
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Q. Among 100 students 32 studying Mathematics, 20 studying physics, 45 studying Biology, 15
studying Mathematics and Bio, 7 studying Mathematics and Physics, 10 studying Physics and Bio, 30 do
not study any of 3 subject. Find the number of students studying all 3 subjects.
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