If the cost of 18 book is 672 then find the cost of such 15 book
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Answer:
Given....
Cost of 18 books=672 Rs.
Cost of 15 books=?
To find the cost of 1 book.
=672/18
=37.4Rs
The cost of 1 book is 37.4 Rs.
Now ,
To find the cost of 5 books,
=37.4*15
=561 Rs.
. Therefore the cost of 15 books is 561 Rs.
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