# RD Sharma Solutions Class 7 Mathematics Solutions for Profit and Loss Exercise 12.1 in Chapter 12 - Profit and Loss

Question 16 Profit and Loss Exercise 12.1

A floweriest buys 100 dozen roses at Rs 2 a dozen. By the time the flowers are delivered, 20 dozen roses are mutilated and are thrown away. At what price should he sell the rest if he needs to make a 20% profit on his purchase?

Answer:

Given cost of 1 dozen roses = Rs. 2

Number of roses bought by the florist = 100 dozens

Thus, cost price of 100 dozen roses = 2 x 100 = Rs. 200

Roses left after discarding the mutilated ones = 80 dozens

Calculating the price at which the florist should sell the 80 dozen roses in order to make

a profit of 20%, we have

Profit % = ((SP-CP)/CP) x100 = ((SP-200)/200) x 100

40 = SP – 200

SP = Rs. 240

Therefore, the SP of the roses should be Rs. 240/80 = Rs. 3 per dozen.

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