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EXERCISE 10.4, Use Cordova Smart Class Software on the smart board in class to do Exercise., 1. A sum of 1800 is lent for 2 years at 12% per annum. Find the interest., 2. Calculate the simple interest on 5600 for 3 years at the rate of 12% per annum. Also, find the amount, to be paid at the end of 3, years., 1, 3. Sunil borrowed 3800 from the bank at the rate of 14-% per annum for 2 years. Find the interest, 1, and amount paid by him at the end of 2, years., 2, 4. Find the principal when the amount is 3600 and interest is 200., 1, years. Find the interest and the, 5. Harish borrowed 15000 from Subhash at 16% per annum for 3, amount paid by Harish to Subhash., 6. Surabhi deposited 7500 in a finance company which pays interest 15% per annum. Find the amount, Surabhi is expected to get after 5, 3, years., 4, 7. Priyanka deposited 6500 in a bank which pays 9% per annum interest. She withdrew 1250 after the, end of the first year. What amount will she get after three years?, MATHEMATICS-7 (161, 8. Mrs. Sood deposited 17000 in a bank at the rate of 12% per annum. If 30% is deducted as income tax, on the interest, find the net annual income., 9. A man borrowed some money from the bank at 10% per annum simple interest for 5 years. He paid back, 36000 to the bank and settled the account. What sum did he borrow from the bank?, 10. 1200 is invested at 8% simple interest per annum. In how much time will it double itself?, 11. Mohsin lent a sum of money at 10% per annum simple interest and received an interest of 2160 in, 6 years. Find the sum., 12. The simple interest on a certain sum of money for 5 years at 10% per annum is 196 less than the simple, interest on the same sum for 4 years at 16% per annum. Find the sum., 13. At what rate per cent will a sum of 1200 amount to 1600 in 6 years?, 14. Anil borrowed a sum of 12300 for a certain period at the rate of 10% per annum and returned 18450., Find the time for which money was borrowed by him. bn