An article is bought for Rs 560. Some of the part is sold at 20% profi...
C) Rs 400 Explanation: 20 -15
. 10
10-(-15) 20-10
25 : 10
5 : 2
So at 20% profit = 5/(5+2) * 560
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An article is bought for Rs 560. Some of the part is sold at 20% profi...
Solution:
Let's assume that the cost price of the part sold at 20% profit is x.
According to the question,
The part sold at 20% profit = x
The part sold at 15% loss = 560 - x
Now, as per the question, the total profit earned is 10%.
So, the selling price of the part sold at 20% profit = x + 0.2x = 1.2x
The selling price of the part sold at 15% loss = (560 - x) - 0.15(560 - x) = 476.5 - 0.85x
The total selling price = (1.2x) + (476.5 - 0.85x) = 1.15x + 476.5
As per the question, the total profit earned is 10%.
So, (Total Selling Price) - (Total Cost Price) = 10% of Total Cost Price
Or, (1.15x + 476.5) - 560 = 0.1(560)
Or, 1.15x - 83.5 = 56
Or, 1.15x = 139.5
Or, x = 121
Therefore, the cost price of the part sold at 20% profit is Rs 121.
Hence, the correct answer is option C (Rs 400).
An article is bought for Rs 560. Some of the part is sold at 20% profi...
C) Rs 400 Explanation: 20 -15
. 10
10-(-15) 20-10
25 : 10
5 : 2
So at 20% profit = 5/(5+2) * 560