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In an exam 43% pass in math,48% passed in physics, 52% passed in chemistry.Only 8% students pass in all three. 14% passed in math and physics and 21% passed in Math and chemistry. 20% passed in physics and chemistry .what is the percentage passing in Math only ?
what is wrong in the answer = 43%-(8%+21%+20%)
Answers (1)
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Sol.
No. of students pass in Math =43
No. of students pass in physics =48
No. of students pass in chemistry =52
No. of students pass in all the 3 subjects = 8
No. of students passed in Math&physics = 14
No. of students passed in Maths $ chemistry =21
No. of students passed in physics and chemistry =20
Nov, according to the given condition of the question, we can draw Venn diagram.
Maths & physics =14
Common in all three = 8
Therefore, Remaining = 6
Maths & chemistry =21
Common in all there =8
Therefore, Remaining = 13
Pass in Maths only = 43 -(6+8+13)
=16%
Therefore, 16% students passing in Maths only