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Class 11
>>Applied Mathematics
>>Basics of financial mathematics
>>Accumulation with simple and compound interest
>>Find the amount and the compound interes
Question
Bookmark
Find the amount and the compound interest on 50000 for 1
2
1
years at 8% per annum with the interest being compounded semi- annually.
Medium
Updated on : 2022-09-05
Solution
verified
Verified by Toppr
It is given that
Principal (P) = 50000
Rate of interest (r) = 8% p.a. = 4% semi-annually
Period (n)= 1
years = 3 semi-annually
We know that
Amount = P(1+r/100)
n
Substituting the values
= 50000(1+4/100)
3
By further calculation
= 50000(26/25)
= 50000×26/25×26/25×26/25
= 56243.20
Here
Compound interest = A - P
= 56243.20−50000
= 6243.20 .
mark me as brainliest
[tex]\underline{\bf{Question:-}}[/tex]
Find compound interest on ₹ 50000 for 2 years and 8 months at 30% per annum compounded annually.
[tex]\underline{\bf{Given\:that:-}}[/tex]
▶️Principle, p = 50, 000
▶️Time period, n = 2 yrs + 8 months
▶️Rate of interest, r = 30 % per annum.
[tex]\underline{\bf{Equation\:used:-}}[/tex]
[tex]\sf{:\implies{Compound\:Interest = P(1+\dfrac{r}{n})^{nt}-1}}[/tex]
[tex]\underline{\bf{Solution:-}}[/tex]
We know,
[tex]\sf{:\implies{CI = 50,000(1+\dfrac{30}{100})^{\dfrac{8}{3}}-1}}[/tex]
[tex]\sf{:\implies{CI = 50,000(1+0.30)^{\dfrac{8}{3}}-1}}[/tex]
[tex]\sf{:\implies{CI = 50,000(1.30)^{\dfrac{1}{3}\:\times\:8}-1}}[/tex]
[tex]\sf{:\implies{CI = 50,000[(1.30)^{\dfrac{1}{3}\:\times\:8}-1]}}[/tex]
[tex]\sf{:\implies{(1.3)^{\dfrac{8}{3}}}=(1.3)^{\dfrac{1}{8}\:\times\:8}[/tex]= 2.013023939
[tex]\sf{:\implies{CI = 50,000[2.013023939-1]}}[/tex]
[tex]\sf{:\implies{CI = 50,000\:\times\:1.013023939}}[/tex]
[tex]\sf{:\implies{CI = \bold{50,651.196}}}[/tex]
[tex]\underline{\sf{Additional\:information:-}}[/tex]
1. Amount received on a certain sum of money of Rs P invested at the rate of r % per annum compounded annually for n years is given by
[tex]\boxed{\bf{:\implies{Amount = P(1+\dfrac{r}{n})^{nt}}}}[/tex]
2. Amount received on a certain sum of money of Rs P invested at the rate of r % per annum compounded semi - annually for n years is given by
[tex]\boxed{\bf{:\implies{Amount = P(1+\dfrac{r}{200})^{2n}}}}[/tex]
3. Amount received on a certain sum of money of Rs P invested at the rate of r % per annum compounded quarterly for n years is given by
[tex]\boxed{\bf{:\implies{Amount = P(1+\dfrac{r}{400})^{4n}}}}[/tex]
4. Amount received on a certain sum of money of Rs P invested at the rate of r % per annum compounded monthly for n years is given by
[tex]\boxed{\bf{:\implies{Amount = P(1+\dfrac{r}{1200})^{12n}}}}[/tex]
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Answers & Comments
Answer:
here you go...
Step-by-step explanation:
search-icon-header
Search for questions & chapters
search-icon-image
Class 11
>>Applied Mathematics
>>Basics of financial mathematics
>>Accumulation with simple and compound interest
>>Find the amount and the compound interes
Question
Bookmark
Find the amount and the compound interest on 50000 for 1
2
1
years at 8% per annum with the interest being compounded semi- annually.
Medium
Updated on : 2022-09-05
Solution
verified
Verified by Toppr
It is given that
Principal (P) = 50000
Rate of interest (r) = 8% p.a. = 4% semi-annually
Period (n)= 1
2
1
years = 3 semi-annually
We know that
Amount = P(1+r/100)
n
Substituting the values
= 50000(1+4/100)
3
By further calculation
= 50000(26/25)
3
= 50000×26/25×26/25×26/25
= 56243.20
Here
Compound interest = A - P
Substituting the values
= 56243.20−50000
= 6243.20 .
mark me as brainliest
[tex]\underline{\bf{Question:-}}[/tex]
Find compound interest on ₹ 50000 for 2 years and 8 months at 30% per annum compounded annually.
[tex]\underline{\bf{Given\:that:-}}[/tex]
▶️Principle, p = 50, 000
▶️Time period, n = 2 yrs + 8 months
▶️Rate of interest, r = 30 % per annum.
[tex]\underline{\bf{Equation\:used:-}}[/tex]
[tex]\sf{:\implies{Compound\:Interest = P(1+\dfrac{r}{n})^{nt}-1}}[/tex]
[tex]\underline{\bf{Solution:-}}[/tex]
We know,
[tex]\sf{:\implies{Compound\:Interest = P(1+\dfrac{r}{n})^{nt}-1}}[/tex]
[tex]\sf{:\implies{CI = 50,000(1+\dfrac{30}{100})^{\dfrac{8}{3}}-1}}[/tex]
[tex]\sf{:\implies{CI = 50,000(1+0.30)^{\dfrac{8}{3}}-1}}[/tex]
[tex]\sf{:\implies{CI = 50,000(1.30)^{\dfrac{1}{3}\:\times\:8}-1}}[/tex]
[tex]\sf{:\implies{CI = 50,000[(1.30)^{\dfrac{1}{3}\:\times\:8}-1]}}[/tex]
[tex]\sf{:\implies{(1.3)^{\dfrac{8}{3}}}=(1.3)^{\dfrac{1}{8}\:\times\:8}[/tex]= 2.013023939
[tex]\sf{:\implies{CI = 50,000[2.013023939-1]}}[/tex]
[tex]\sf{:\implies{CI = 50,000\:\times\:1.013023939}}[/tex]
[tex]\sf{:\implies{CI = \bold{50,651.196}}}[/tex]
[tex]\underline{\sf{Additional\:information:-}}[/tex]
1. Amount received on a certain sum of money of Rs P invested at the rate of r % per annum compounded annually for n years is given by
[tex]\boxed{\bf{:\implies{Amount = P(1+\dfrac{r}{n})^{nt}}}}[/tex]
2. Amount received on a certain sum of money of Rs P invested at the rate of r % per annum compounded semi - annually for n years is given by
[tex]\boxed{\bf{:\implies{Amount = P(1+\dfrac{r}{200})^{2n}}}}[/tex]
3. Amount received on a certain sum of money of Rs P invested at the rate of r % per annum compounded quarterly for n years is given by
[tex]\boxed{\bf{:\implies{Amount = P(1+\dfrac{r}{400})^{4n}}}}[/tex]
4. Amount received on a certain sum of money of Rs P invested at the rate of r % per annum compounded monthly for n years is given by
[tex]\boxed{\bf{:\implies{Amount = P(1+\dfrac{r}{1200})^{12n}}}}[/tex]