Question : If the selling price of 40 articles is equal to the cost price of 50 articles, the loss or gain percent is:
Option 1: 25% gain
Option 2: 20% gain
Option 3: 25% loss
Option 4: 20% loss
Correct Answer: 25% gain
Solution :
Let the cost price of each article be Re. 1.
Selling price (SP) of 40 articles = cost price (CP) of 50 articles = Rs. 50
CP of 40 articles = Rs. 40
Profit on 40 articles = SP of 40 articles – CP of 40 articles = 50 – 40 = 10
Profit % =$\frac{\text {Profit}}{\text {Cost price}}\times 100 =\frac {10}{40}\times 100=25\%$
Hence, the correct answer is 25% gain.
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