Q. Rs. 800 at 5% per annum compounded annually will amount to Rs. 882 in:
Answer:
2 year
Notes: $ A = P\left ( 1+\frac{R}{100} \right )^{T}$
$ => 882 = 800\left ( 1+\frac{5}{100} \right )^{T}$
$ => \frac{882}{800} = \left ( \frac{21}{20} \right )^{T}$
$ => \frac{441}{400} = \left ( \frac{21}{20} \right )^{2}= \left ( \frac{21}{20} \right )^{T}$
∴ T = 2 years
Hence option [B] is correct answer.