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In a library 20% of books are in English, 33.33% is in German and the remaining books are in French. Among the German books 75% are fiction books and the rest are non fiction.
Among the non fiction books,10% are biographies, 20% are autobiographies and the rest are books on society,arts and culture.
Among the autobiographies there are 20 books written by women which comprises 40% of autobiographical novels. How many books are there in the library in total.
a) 2000
b)3000
c)1500
d)4000
Read Solution (Total 5)
-
- x*33.3/100*25/100*20/100*40/100=20
x=3000 - 5 years agoHelpfull: Yes(19) No(12)
- c basic calculation
- 5 years agoHelpfull: Yes(2) No(22)
- starting from end that is 20 books are written which is 40% of the total autobiographies.thus total number of autobiographies are (40/100)*x=20;then going as per sequence we can conclude
(40/100)*( 20/100)*(25/100)*(20/100)*(33.33/100)=20. thus x = 3000 - 5 years agoHelpfull: Yes(2) No(0)
- B it is simple percentage question
- 5 years agoHelpfull: Yes(0) No(9)
- As we know that total 40% autobiographical books are there in which 20 are written by women
soo 40% of 20% of 75% of 33.33% of x=20
therefore x=3000 - 3 years agoHelpfull: Yes(0) No(0)
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