In how many years the compound interest on Rs. 10,000 at the rate of 10% will be Rs. 2,100?

1.5 years 2 Years 2.5 Years 3 years

2 Years

The Formula that we used here is - Amount = P$(1 \;+\; \frac{R}{100})^t$ and Amount = Principal + Compound Interest ⇒ 10000 + 2100 = 10000 $(1 \;+\; \frac{10}{100})^t$ ⇒ 12100 = 10000 $(1 \;+\; \frac{1}{10})^t$ ⇒ (\(\frac{11}{100}\))² = $( \frac{1}{10})^t$ So, t = 2 Hence, time take is 2 years.