In a boards examination, 40 students failed in physics, 40 in chemistry and 35 in mathematics, ...
3,753 views · Published 12 October 2018 · 4:34 · Indexed 6 October 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW In a boards examination, 40 students failed in physics, 40 in chemistry and 35 in mathematics, 20 failed in maths and physics, 17 in physics and chemistry, 15 in maths and chemistry and 5 in all the three subjects. If 350 students appeared in the examination, how many of them did not fail in any subject?
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