The selling price of 30 items is equal to the purchase price of 25 items, then the profit or loss…
Take the cost of one item as Re 1. Then 30 items cost 30 but sell for the cost of 25 items, i.e. 25, a loss of 5. The loss % is \(\frac{5}{30}\times100=16\tfrac23\%\), so it…
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The selling price of 30 items is equal to the purchase price of 25 items, then the profit or loss percent is
Answer and explanation
Correct answer A
Take the cost of one item as Re 1. Then 30 items cost 30 but sell for the cost of 25 items, i.e. 25, a loss of 5. The loss % is , so it is a loss, not a profit. Dividing the loss by 25 instead of the cost price 30 would wrongly give 20%.
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NCHM Joint Entrance Examination (NCHM JEE)