Question

1.) In a school library , 40% of the books are Nepali Language , 40% of the remaining books are in English and the remaining books are in regional languages . If the number of books in English Language is 4800 , find the total number of books in the library .

2.) In a combined test of Mathematics and English, 24% candidates failed in English subject , 27% failed in Mathematics and 20%
failed in both the subjects .

i) Find the percentage of the students who failed in both the subjects.

ii) Find the percentage of students who passed in both the Subjects.

iii) If 414 students passed in both the subjects , Find the total number of students .


Please answer this question..I have written too long..lots of time and effort has putten..I will mark you as a Brainliast..if the answer is satisfied..

●The Answers are 1.) 20000
2.) i) 31%
ii) 69%
iii) 600 students
Tell me proper step wise..All the Best ! ​

Answer 1

Answer:

1.Total 8,000 + the rest =12,000 books.

40% Nepali = 8,000 books.

60% of all books are not Nepali ( 4,800 English+ 7,200 regional = 12,000 is 60% of the rest.

40% of the 60% remaining books are in English (4,800 books = 40%)

The remaining books (60%)are in regional languages = 7,200 books = 60% of the rest.

A grand total of 20,000 books are in the library.

2.i) It is given that 24 % failed in english,

27% failed in maths. Hence percentage of students that failed in either one subject=(24+27-20)- since 20 percent failed in both subjects.

Answer: 31 percent

ii) Students who passed in both subjects=(100-31)%

=69%

iii) Let number of students= x

=69x / 100 = 414

=600.