There are some history books and some geography books in a library. T – McqOptions

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1.	There are some history books and some geography books in a library. The books that were read were read cover to cover. The average number of pages read for all these books is 158. If the average number of pages read for history books is 164 and that for geography books is 154, find the ratio of no. of history books to that of geography books.
A.	2:3
B.	3:2
C.	3:5
D.	5:3
Answer» B. 3:2

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