3. A book seller bought 45 books. He sold them at the rate of Rs. 20.eac
of Rs. T80’on the whole. Find the cost price of :

July 17, 2021

By Liliana

1 thought on “3. A book seller bought 45 books. He sold them at the rate of Rs. 20.eac<br />of Rs. T80’on the whole. Find the cost price of :<br”

1. Answer:

   Cost Price of 200 textbooks = 12000 Rs

   ∴ Cost price of 1 textbook =

   200

   12000

   =60 Rs

   Profit = Cost of 24 books =24×60=1440 Rs

   ∴Profit percentage=

   CP

   profit×100

   =

   12000

   1440×100

   =12%

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