Answer
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Hint: First calculate the amount by making use of the formula and then calculate the compound interest.
Complete step-by-step answer:
Given that the principal=Rs.8,000
Time period=$1\dfrac{1}{2}$ years=$\dfrac{3}{2}$ years
But, it is given that the interest is compounded half yearly
So,
t=$\dfrac{3}{2} \times 2 = $ 3years
Rate of interest=10%
Make use of the formula of amount
$A = P{\left( {1 + \dfrac{R}{{100}}} \right)^t}$
$
A = 8000{\left( {1 + \dfrac{{10}}{{100}}} \right)^3} \\
A = 8000{\left( {\dfrac{{110}}{{100}}} \right)^3} \\
A = 8000 \times {(1.1)^3} \\
A = 8000 \times 1.331 \\
A = Rs.10648 \\
$
So, the amount =Rs.10648
We know that the compound interest is calculated by
Compound Interest=Amount-Principal
Compound Interest=10648-8000
Compound Interest=Rs.2648
Note: Whenever we are solving these types of problems related to compound interest, it is always recommended to first find out the amount using the formula and from this calculate the compound interest and also note that in this problem the interest is compounded half yearly and not annually.
Complete step-by-step answer:
Given that the principal=Rs.8,000
Time period=$1\dfrac{1}{2}$ years=$\dfrac{3}{2}$ years
But, it is given that the interest is compounded half yearly
So,
t=$\dfrac{3}{2} \times 2 = $ 3years
Rate of interest=10%
Make use of the formula of amount
$A = P{\left( {1 + \dfrac{R}{{100}}} \right)^t}$
$
A = 8000{\left( {1 + \dfrac{{10}}{{100}}} \right)^3} \\
A = 8000{\left( {\dfrac{{110}}{{100}}} \right)^3} \\
A = 8000 \times {(1.1)^3} \\
A = 8000 \times 1.331 \\
A = Rs.10648 \\
$
So, the amount =Rs.10648
We know that the compound interest is calculated by
Compound Interest=Amount-Principal
Compound Interest=10648-8000
Compound Interest=Rs.2648
Note: Whenever we are solving these types of problems related to compound interest, it is always recommended to first find out the amount using the formula and from this calculate the compound interest and also note that in this problem the interest is compounded half yearly and not annually.
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