Mathematics, 08.08.2021 23:10 maryam2863
In a class of 30 student in which at least one of them offered biology or physics, 17 offered physics, 16 offered biology.
how many offered both biology and physics?
physics only?
biology only? only one subject?
how many offered neither?
Answers: 3
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In a class of 30 student in which at least one of them offered biology or physics, 17 offered physic...
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