In a library 1 by 5 are math books 1 by 8 science book 1 by 12 Hindi book and the rest r e v s book if the number of EVS book is 142 find the total number of book in the library without using the value of x
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Answer:
210 total books
Step-by-step explanation:
*I am solving it by unitary method*
Recall
Number of maths books = 1/5
Number of science books = 1/8
number of evs books 142
Let the total number of books be 40(LCM of 5 and 8)
Then, number of Maths Books = 8
& number of science books = 5
& number of science books = 40-(5+8)..................total-sum of other books
=27
Total Books EVS Books
40 27
Unknown 142
Total Books = (40*142)/27
after solving you get 210 as the answer
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