Question

Mrs Dhital deposited Rs 10000 in her fixed deposit account of a bank at 10 % p.a compound interest In how many years would she withdraw a compound amount of Rs 13310 ​

Answer 1

Answer:

R =100 %

After\: years \: the\: sum \: amounts = 1000 \times 1.1 \times (1.05) ^{2}

= 10000 \times \frac{11}{10} \times \frac{21}{20} \times \frac{21}{20}

12127.5 rs

Answer 2

Answer:

Principal = rs 10000

Rate of interest = 10% per annum

Time = ?

Amount = rs 13310

A = P (1+R/100)^n

13310 = 10000 (1+10/100)^n

13310 = 10000 (1+1/10)^n

13310/10000 = (11/10)^n

1331/1000 = (11/10)^n

(11/10)^3 = (11/10)^n

n = 3