Question

a man sold a book at a loss of 20% if he had sold the book for rupees 12 more he would have gained 10% find the cost price of the book
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Answer 1

Answer:

40rs

Step-by-step explanation:

x=book original cost

(80÷100)x+12=(110÷100)x

0.8x+12=1.1x

12=0.3x

x=12÷0.3

x=40