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