14 Compound interest

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1. Find the compound interest if `4000 are invested for 3 years at the rate of 12.5 p.c.p.a. 1) 695.21 rupees 2) 1695.41 rupees 3) 1595.31 rupees 4) 1695.31 rupees

2. The population of a city increases at compounding rate of 8% per year. Find the population in the year 2012 if populatin in the year 2010 was 2,50,000. 1) 2,91,600 2) 2,81,600 3) 2,61,600 4) 2,91,680

3. Rehana purchased a scooter in the year 2015 for `60000. If its value falls by 20% every year what will be the price of scooter after 2 years 1) 38400 rupees. 2) 8400 rupees. 3) 38488 rupees. 4) 38600 rupees.

4. The amount of a certain principal is `6655 in 3 years, compounded annually at the rate of 10 p.c.p.a. Find the principal. 1) Rs.5500 2) Rs.5000 3) Rs.5600 4) Rs.5400

5. Find the number of years for which the compound interest of `9000 is `1890, at the rate of 10 p.c.p.a.. 1) 4 years 2) 6 years 3) 2 years 4) 1 year

6. Find the difference between simple interest and compound interest on 20000 at 8 p.c.p.a. 1) Rs. 220 2) Rs. 160 3) Rs.128 4) Rs. 400

7. If cost of television set is 12000 rupees and GST on TV set is 18% what is the total cost of TV? 1) 9840 2) 12018 3) 14160 4) 14601

8. Neha took a loan of 50000 rupees at 12 p.c.p.a. to buy a two wheeler. What amount will she return to the bank at the end of one year? 1) 6,000 2) 50,000 3) 56,000 4) 66,000

9. Unmesh borrowed some money for 5 years at simple interest. The rate of interest is 9 p.c.p.a. If he returned 17400 rupees altogether at the end of 5 years, how much had he borrowed? 1) 45000 rupees. 2) 2000 rupees. 3) 12000 rupees. 4) 47000 rupees.

10. Principal = 25000 rupees, Amount = 31,000 rupees, Time = 4 years, what is the rate of interest? 1) 7 p.c.p.a 2) 5 p.c.p.a 3) 6 p.c.p.a 4) 8 p.c.p.a