1.

The selling price of 10 articles is equal to the costprice of 11 articles. Find the gain or loss per cent.

Answer»

Let the cost price of one article is Rs. 100Then cost price of 11 article is Rs. 100 X 11 = Rs. 1100

According to questionSelling price of 10 article = Cost price of 11 article(Rs 1100)Selling price of 1 article = Rs. 1100/10 = Rs 110

Gain % = 110 -100 = 10%



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