Question

You invested Rs. $1500$ and received Rs. $5000$ after three years. What had been the interest rate?

• A. $111.11\%$
• B. $222.22\%$
• C. $333.33\%$
• D. $77.77\%$

Answer 1

The correct option is D $77.77\%$

Amount invested $=1500$

Amount received after three years $=5000$

$\Rightarrow$ Interest earned $=5000-1500=3500$

Let interest rate$\%$ be $r$

$\Rightarrow$ $3500=\frac{1500\times 3\times r}{100}$

$\Rightarrow$ $r=77.77\%$