11. Amit sells a pen to Kamal at a gain of 10% and Kamal sells it to Vimal at a gain of 20%. If Vimal pays Rs.19.80 for it what did it cost Amit?

12. An electrician sells a room heater for Rs.322 gaining 1/6 of its cost price. Find the gained percent?

13. On the eve of Gandhi Jayanti, the Gandhi Ashram declares a 20% discount on silk. If the selling price of a silk sari is Rs.560, what is it’s marked price?

14. The marked price of a ceiling fan is Rs.920 during the off season. It is sold for Rs.874. What percent discount is allowed?

15. A cycle dealer sells a bicycle at a gain of 8%. If he had sold it for Rs.76 less, he would have lost 2%. Find the cost price of the bicycle?

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