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.

rnplz 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**

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