Advertisements
Advertisements
प्रश्न
Find the rate at which a sum of money will become four times the original amount in 2 years, if the interest is compounded half-yearly.
Advertisements
उत्तर
Let the rate percent per annum be R.
Then,
\[A = P \left( 1 + R \right)^{2n} \]
\[4P = P \left( 1 + \frac{R}{200} \right)^4 \]
\[ \left( 1 + \frac{R}{200} \right)^4 = 4\]
\[\left( 1 + \frac{R}{200} \right) = 1 . 4142\]
\[\frac{R}{200} = 0 . 4142\]
R = 82 . 84
Thus, the required rate is 82 . 84 %.
संबंधित प्रश्न
Maria invested Rs 8,000 in a business. She would be paid interest at 5% per annum compounded annually. Find.
1) The amount credited against her name at the end of the second year
2) The interest for the 3rd year.
Find the amount which Ram will get on Rs 4,096, he gave it for 18 months at `12 1/2` %per annum, interest being compounded half yearly.
Ramesh deposited Rs 7500 in a bank which pays him 12% interest per annum compounded quarterly. What is the amount which he receives after 9 months.
Anil borrowed a sum of Rs 9600 to install a handpump in his dairy. If the rate of interest is \[5\frac{1}{2} %\] per annum compounded annually, determine the compound interest which Anil will have to pay after 3 years.
Surabhi borrowed a sum of Rs 12000 from a finance company to purchase a refrigerator. If the rate of interest is 5% per annum compounded annually, calculate the compound interest that Surabhi has to pay to the company after 3 years.
Find the amount of Rs 4096 for 18 months at
At what rate percent compound interest per annum will Rs 640 amount to Rs 774.40 in 2 years?
Find the rate at which a sum of money will double itself in 3 years, if the interest is compounded annually.
Find CI paid when a sum of Rs. 10,000 is invested for 1 year and 3 months at `8 1/2%` per annum compounded annually.
Amount when interest is compounded annually is given by the formula ______.
