Question

In a city, there are 25 Hindi medium schools, 18 English medium schools and 7 schools have both
the mediums. Find
(1) how many schools are there in all in the city ;
(ii) how many schools have Hindi medium only;
(22) how many schools have English medium only​

Answer 1

Answer:

43

25

18

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Answer 2

Answer:

1)36, 2)18, 3)9

Step-by-step explanation:

let A=hindi midium schools

B=english midium schools

hence,n (A)=25,n (B)=18 & n (A intersection B)=7

we have, n (A)+n (B)-n (A intersection B)=n (A union B)

25+18-7=43-7=36

n (A union B)=36

therefore,number of schools in all city=36

number of schools have Hindi midium only=n (A)-n (A intersection B)

=25-7=18

number of schools have English midium only=

n (B)-n (A intersection B)

=18-7=9