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EXERCISE 10.3, Use Cordova Smart Class Software on the smart board in class to do Exercise., 1. A chair is purchased for 700 and sold for 570. Find gain or loss, per, cent., 2. A man purchased a sewing machine for 1250 and spent 250 on its transportation. He sold it for 1600., 5o Find his profit per cent., 3. The cost price of 16 articles is equal to the selling price of 12 articles. Find the gain per cent., 4. The cost price of 12 pencils is equal to the selling price of 10 pencils. Find the profit per cent., 5. Parvinder sold a watch at a loss of 5%. If he had sold that watch for 27 more, he would have gained, 7%. Find the cost price of the watch., 6. A shopkeeper sells an article at a profit of 10%. If the article costs him 1960, find, selling price., 7. Find the selling price of a table, if its cost price is 1250 and loss is 15%., 8. By selling a flower vase for 567, a shopkeeper gains 8%. Find its cost price., 9. By selling a wooden table at a loss of 20%, a shopkeeper makes a loss of 90. Find its, (i) selling price (ii) cost price., 10. By selling an article for 1600, a shopkeeper loses 20%. For how much should he sell it to gain 20%?, 11. By selling a watch for 1505, a man gains, of its cost price. Find the cost price of the watch., 6., 12. By selling 8 dozen pencils, a shopkeeper gains the selling price of one dozen pencils. Find his gain per cent., 13. Manoj purchased lemons for 600. He sold, of these at a loss of 20% and the remaining at a gain of, 4, 3, 20%. How much per cent does he gain or lose on the whole transaction?, 14. A dealer gains 15% by selling his goods for 8050. He decides to make a profit of only 10%. What is, the new selling price?, 15. A machine was purchased for 3750 and 250 were paid for its transportation. If it is sold at a gain of, 40, find the gain per cent., 16. By selling an article for 3600, a man makes a profit of 20%. What is the cost price of the article? What, no ucins b, would his gain% be if he sold the article for 4000?