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ICSE Class 6 Answered

In a library 1/5 are maths book, 1/8 are science books,1/12 are hindi books and the rest are EVS books.If the number of EVS books is 142,find the total no of books in the library
Asked by Deepankarsajwan123 | 14 Jul, 2019, 08:59: PM
answered-by-expert Expert Answer
sum space of space all space fraction space is space 1
let space fraction space of space EVS thin space books space be space straight x
1 fifth plus 1 over 8 plus 1 over 12 plus straight x equals 1
straight x equals 71 over 120
now space let space total space number space of space books space be space straight n
71 over 120 cross times straight n equals 142
straight n equals 240
Answered by Arun | 14 Jul, 2019, 09:48: PM
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