Question

In exam 47%student failed in english and 43% failed in hindi and 15% students passed on both subject if failed nuber of student is 30 then find passed nuber of student in hindi

Answer 1

Answer:

342

Step-by-step explanation:

Let, N ( E ) denote number of student passed in English and n ( H ) denote the number of students passed in Hindi.

n(U) = 100%,

n(E) = 100%-47% = 53%

n(H) = 100%-43% = 57%

n(E∩H) = 15 %

Here, n ( E ∪ H) Complement = 100%-(53%+57%-15%)

                                                = 5%

Now, 5 % of n(U) = 30

           n(U) = 600

Then, n(H) = 57% of 600

                 = 342