Question

82. In a sample survey, it was found that 76% of the students like mathematics and 44%
of the students like physics. How many students like both mathematics and physics?

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Answer 1

Answer:

20%

Step-by-step explanation:

% of students who like mathematics=A

% of students who like physics =B

We have to finf n (A instesection B)

To solve it we have a formula

n(A union B)= n(A)+n(B)-n(A instesection B)

Therefore n(A instesection B)= 76+44-100=20%

Note: n(A union B)=

#firstanswer excuse if any mistakes