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19. In a class of 25 students, 12 have taken Mathematics, 8have taken Mathematics but not Biology. Find the numberof students who have taken both Mathematics andBiology and the number of those who have taken Biologybut not Mathematics. Each student has taken eitherMathematics or Biology or both. |
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Answer» Total student = 25Student taken maths = 12Students taken only maths = 8So total student taken only biology = 13Students taken both maths and biology = 4 As we know out of 12 maths student 8 are only studing maths Therefore 4 students are those who study both maths and biology. |
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