Question

Profit on the dead

(a) A man bought two books for Rs 1040. He sold one at a loss of 15% and other at a profit of
36%
then he found that each book was sold for the same price. Find the cost price of each book.​

Answer 1

640 and 400

Explanation:

Cost of books: x and 1040 -x

x sold at a loss of 15%= 0.85 x

1040 -x sold at a profit of 36% = (1040 - x)*1.36

• x*0.85= (1040-x)*1.36
• 0.85x+1.36x= 1040*1.36
• 2.21x= 1414.4
• x= 1414.4/2.21
• x= Rs. 640
• Rs. 1040 - x= R. 400