By selling 10 articles, a man gains equal to cost price of 2 articles, the profit made is :

1. 40%

2. 20%

3. 25%

4. 50%

A fruit-seller sells 4 oranges for ₹ 3, gaining 50%. Find :

(i) C.P. of 4 oranges.

(ii) C.P. of one orange.

(iii) S.P. of one orange

(iv) profit made by selling one orange

(v) number of oranges need to be bought and sold in order to gain ₹ 24.

The selling price of 15 articles is equal to the cost price of 12 articles. Find the gain or loss as percent.

A shopkeeper bought rice worth ₹ 4,500. He sold one-third of it at 10% profit. If he desires a profit of 12% on the whole, find :

(i) the selling price of the rest of the rice.

(ii) the percentage profit on the rest of the rice.