Question 2. The interest on a certain deposit at 4.5 percent per annum is Rs. 202.50 in one year. How much will the additional interest in one year be on the same deposit at 5 percent per annum?

Question 3. The sum invested at 5 percent simple interest per annum increase to Rs. 504 in 4 years. The same amount at 10 percent simple interest per annum in 2.5 years will grow to ?

Question 4. What will be the ratio of simple interest earned by certain amount at the same rate of interest for 6 years and that for 9 years ?

Question 5. Nitin borrowed some money at the rate of 6 percent per annum for the first three years, 9 percent for the next five years and 13 percent per annum for the period beyond eight years. If the total interest paid by him at the end of eleven years is Rs. 8160 then how much money did he borrow ?

Question 6. The simple interest on a sum of money will be Rs. 600 after 10 years. If the principle is tripled after 5 years, what will be the total interest at the end of the tenth year ?

Question 7. The simple interest on Rs. 10 for 4 months at the rate of 3 paise per rupee per month is ?

Question 8. An automobile financier claims to be lending money at simple interest, but he includes the interest every six months for calculating the principal. If he charges an interest of 10 percent, the effective rate of interest becomes ?

Question 9. A sum of money at simple interest amounts to Rs. 815 in 3 years and to Rs. 854 in 4 years. The sum is ?

Question 10. A sum of money lent out at simple interest amounts to Rs. 720 after 2 years and to Rs. 1020 after a further period of 5 years. The sum is ?

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