Question

in how much time will a sum of rupees thousand year the compound interest of rupees 331 at the rate of 10% per annum​

Answer 1

Answer:

3

Step-by-step explanation:

Let the required time be n years, Then,

1331=1000\left ( 1+\frac{10}{100} \right )^{n}

=>\frac{1331}{1000}=\left ( \frac{10+1}{10} \right )^{n}

=>\left ( \frac{11}{10} \right )^{n}=\left ( \frac{11}{10} \right )^{3}

=>n=3