Question

there is 10% profit by selling a book if the selling price would have been rupees 7 less there would have been 4% loss what is the cost price of the book

Answer 1

cp=100-loss/Cp now you can solve it by this process

Answer 2

Answer:

Rs 50

Step-by-step explanation:

Difference in profit = 10 - (-4) = 14%

Difference in price = Rs 7

Find the cost price:

14% = Rs 7

1% = 7 ÷ 14 = Rs 0.50

100% = 0.5 x 100 = Rs 50

Answer: The cost price is Rs 50

Check:

10% profit = 0.1 x 50 = Rs 5

Selling Price = 50 + 5 = Rs 55

4% loss = 0.04 x 50 = Rs 2

Selling Price = 50 - 2 = Rs 48

Difference in price = 55 - 48 = Rs 7 (Verified)