Question

Kamala deposited a sum of Rs. 8000 in a bank. After one year she has withdrawn Rs. 2000 and at the end of 3 years she received an amount of Rs. 7800. Find the rate of interest.

• A. 7%
• B. 8%
• C. 9%
• D. 11%

Answer 1

Answer: (C)

9%

$SI=A-P=7800-6000=Rs.1800$
($\because$ she withdraws Rs 2000)

We have
$\frac{8000\times 1\times R}{100}+\frac{6000\times 2\times R}{100}=1800$

$\therefore 80R+120R=1800$

$\therefore 200R=1800$

$\therefore R=9\%$