If the selling price of 4 articles is equal to the cost price of 5 articles, find the gain percent,

If the selling price of 10 articles is equal to the cost price of 11 articles, then the gain percent is

The selling price of 12 articles is equal to the cost price of 15 articles. The gain percent is

If the selling price of 10 articles is the same as the cost price of 12 articles, find gain percent.

The selling price of 20 articles is equal to the cost price of 22 articles. The gain percentage is

If the selling price of 12 articles is equal to the cost priceof 15 articles,then the percentage gain or loss is:

If the selling price of 10 articles is the same as the cost price of 12 articles,find gain percent.