a survey shows that 63% of americans like cheese whereas 76% like apples.If x% of americans like both cheese and apples,find the value of x.

rn

plz explain in very a easy step.....

let us take % as no. of people.

Now no.of americans who like cheese , n(c) =63

no.of americans who like apples ,n(a)=76

and total no. of people , n(cUa)=100  (since 100%)

you need to find the intersection of the sets cheese and apples

which is equal to n(a)+n(c)-n(cUa)=63+76-100=39

hence X=39