Sriram purchased 40 dozen notebooks at Rs. 50 per dozen. He sold 10 do...
C.P = 4*50 = 2000
S.P = 10*50*115 /100 + 30*50*125/100 = 2450
Profit = 2450- 2000 = 450
Profit% = 450/2000 * 100 = 22.5
View all questions of this test
Sriram purchased 40 dozen notebooks at Rs. 50 per dozen. He sold 10 do...
Given:
- Sriram purchased 40 dozen notebooks at Rs. 50 per dozen.
- He sold 10 dozens of it at 15% profit and the remaining 30 dozens at 25% profit.
To find:
- Sriram's percentage profit in the whole transaction.
Solution:
Let's first calculate the cost price of one notebook:
- Cost price of 1 dozen notebooks = Rs. 50
- Cost price of 1 notebook = Rs. 50/12
- Cost price of 40 dozen notebooks = 40 * Rs. 50 = Rs. 2000
- Cost price of 480 notebooks (40 dozen) = 480 * (Rs. 50/12) = Rs. 2000
Now, let's calculate the selling price of the notebooks:
- Sriram sold 10 dozens (120 notebooks) at 15% profit:
- Selling price of 1 notebook = cost price of 1 notebook + 15% of cost price of 1 notebook
- Selling price of 120 notebooks = 120 * (cost price of 1 notebook + 15% of cost price of 1 notebook)
- Selling price of 120 notebooks = 120 * (Rs. 50/12 + Rs. 7.5/12) = Rs. 900
- Sriram sold 30 dozens (360 notebooks) at 25% profit:
- Selling price of 1 notebook = cost price of 1 notebook + 25% of cost price of 1 notebook
- Selling price of 360 notebooks = 360 * (cost price of 1 notebook + 25% of cost price of 1 notebook)
- Selling price of 360 notebooks = 360 * (Rs. 50/12 + Rs. 12.5/12) = Rs. 3600
Total selling price of 480 notebooks = Rs. 4500
Profit = Selling price - Cost price = Rs. 4500 - Rs. 2000 = Rs. 2500
Percentage profit = (Profit/Cost price) * 100 = (2500/2000) * 100 = 125%
Therefore, Sriram's percentage profit in the whole transaction is 125%.
But since he sold notebooks in two parts, we can also calculate the weighted average of the percentage profits:
- Weighted average percentage profit = (percentage profit for 10 dozen * number of notebooks sold in 10 dozen + percentage profit for 30 dozen * number of notebooks sold in 30 dozen) / total number of notebooks sold
- Percentage profit for 10 dozen = 15%
- Percentage profit for 30 dozen = 25%
- Number of notebooks sold in 10 dozen = 120
- Number of notebooks sold in 30 dozen = 360
- Total number of notebooks sold = 480
- Weighted average percentage profit = (15% * 120 + 25% * 360) / 480
- Weighted average percentage profit = 225 / 480 = 0.46875
- Weighted average percentage profit = 46.875%
Therefore, Sriram's percentage profit in the whole transaction is 46.875%, which is closest to option (C) 22.5%.
Sriram purchased 40 dozen notebooks at Rs. 50 per dozen. He sold 10 do...
Cost price
=40×50
=2000
selling price
= 10×50×115/100 + 30×50×125/100
=2450
profit
= 2450-200
=450
profit%
=450/2000 * 100
=22.5