A sum of money invested at compound interest amounts in 3 years to Rs.2,400 and in 4 years to Rs.2,520. The Interest rate per annum ls :
1). 5%
2). 6%
3). 10%
4). 12%
A sum of money Invested at compound Interest amounts to Rs.650 at the end of first year and Rs.676 at the end of second year. the sm of money is :
1). Rs.600
2). Rs.540
3). Rs.625
4). Rs.560
An amount of money appreciates to Rs.7.000 after 4 years and to Rs.10.000 after 8 years at a certain compound interest compounded annually. The Initial amount of money was
1). Rs.4,700
2). Rs.4,900
3). Rs.4,100
4). Rs.4,300
The compound interest on a certain sum for two successive years are Rs.225 and Rs.238.50.The rate of interest per annum is
1). $7\frac{1}{2}$%
2). 5%
3). 10%
4). 6%
A certain amount of money at r%. compounded annually after two and three years becomes Rs.1440 and Rs.1728 respectively. r is
1). 5
2). 10
3). 15
4). 20