in a class, 156 students study science and mathematics.if they passed at least one subject and twice as many passed science as many passed mathematics and 75 passed in mathematics subjects, find how many passed in mathematics only.

8 answers

Use a Venn diagram, showing two overlapping circles labelled M and S
From your data 75 passed Math and twice that many or 150 passed Science
Let x be the number who passed both
so after filling in the data on the Venn,
(75-x) + x + (150-x) = 156
x = 69

take it from there

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The solution of the question

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Toputitinthevenndiagram

Yes of course.The number of people who study only mathematics is 6