Question

A shopkeeper earns a profit of 15% after selling a book at 20% discount on the printed price. What is the
ratio of the cost price and printed price of the book?​

Answer 1

Step-by-step explanation:

let the printed price be rs 100

then s.p = rs 80

gain= 15%

c.p= ( 100/115 ×80) =rs1600/23

c.p printed price = 1600/23:100

=1600/2300=16/23

.. =16:23ans

Answer 2

so 16 : 23 is answer

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I have given the step by step explanation