Advertisements
Advertisements
प्रश्न
Ishita invested a sum of Rs 12000 at 5% per annum compound interest. She received an amount of Rs 13230 after n years. Find the value of n.
Advertisements
उत्तर
\[A = P \left( 1 + \frac{R}{100} \right)^n \]
\[13, 230 = 12, 000 \left( 1 + \frac{5}{100} \right)^n \]
\[ \left( 1 . 05 \right)^n = \frac{13, 230}{12, 000}\]
\[ \left( 1 . 05 \right)^n = 1 . 1025\]
\[ \left( 1 . 05 \right)^n = \left( 1 . 05 \right)^2 \]
On comparing both the sides, we get:
n = 2
Thus, the value of n is two years.
APPEARS IN
संबंधित प्रश्न
Find the compound interest on Rs 1000 at the rate of 8% per annum for \[1\frac{1}{2}\] years when interest is compounded half-yearly.
Mewa Lal borrowed Rs 20000 from his friend Rooplal at 18% per annum simple interest. He lent it to Rampal at the same rate but compounded annually. Find his gain after 2 years.
Find the compound interest on Rs 64000 for 1 year at the rate of 10% per annum compounded quarterly.
Find the amount of Rs 2400 after 3 years, when the interest is compounded annually at the rate of 20% per annum.
Amit borrowed Rs 16000 at \[17\frac{1}{2} \%\] per annum simple interest. On the same day, he lent it to Ashu at the same rate but compounded annually. What does he gain at the end of 2 years?
Rakesh lent out Rs 10000 for 2 years at 20% per annum, compounded annually. How much more he could earn if the interest be compounded half-yearly?
What sum will amount to Rs 4913 in 18 months, if the rate of interest is \[12\frac{1}{2} \%\] per annum, compounded half-yearly?
Find the rate at which a sum of money will double itself in 3 years, if the interest is compounded annually.
Sum of money amounts to Rs 453690 in 2 years at 6.5% per annum compounded annually. Find the sum.
Amount when interest is compounded annually is given by the formula ______.
