How many can speak English given the following conditions?

Question

In a class of 60 students,40% speak only Hindi(H).25% speak only English(E) and the rest can speak both the languages.How many speak English.

MyApproach

Using VennDiagram,I see $40$% only H and $25$% only E.

Now,$40$% of $60$=$24$ This means $24$ students opted for Hindi out of $60$

and $25$% of 60 students choose English means $15$ students opted for English out of $60$.

15 is the Ans.

But the Ans given is 36.

Can anyone guide me what I am doing wrong.

Answer 1

You have counted the students who only speak english(15), however, you might have students who speak english as well as hindi, which here is 21. So the total becomes 36.