Question

A man sold a book at a loss of 20%.If he had sold the book for RS 12 more ,he would have gained 10%. Find the cost price of the book.
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Answer 1

Answer:

answer ₹3

Step-by-step explanation:

this is the answer

Answer 2

Step-by-step explanation:

Let book cost be =x

then

So, by using the formula, we get

The S.P. of the book = 100-20/100=80/100x=0.8x

accordingly we can form an equation

0.8x+12=100+10/100*x

0.8x+12=110/100x

0.8x+12=1.1x

12=1.1-0.8x

0.3=12

x=12/0.3=40

So ,book cost 40 rupees

Hope it is helpful

Thus, the cost price of the book is Rs. 40.