Find the compound interest on rs 48,000 for one year at 8% per annum when compounded half-yearly.

What will be the compound interest of Rs. 48,000, at the rate of 10% for a period of \(1\frac{1}{2}\) years, if the rate of interest is calculated based on six months?

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REET 2011 Level - 2 (Maths & Science) (Hindi/English/Sanskrit) Official Paper

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  1. Rs. 6,566
  2. Rs. 7,566
  3. Rs. 8,566
  4. Rs. 7,577

Answer (Detailed Solution Below)

Option 2 : Rs. 7,566

Free

CT 1: Growth and Development - 1

10 Questions 10 Marks 10 Mins

Given:

P = 48,000  

R = 10%  

T = 1\(\frac{1}{2}\) years;

Concept:

 \(C.I = P{\left[ {1 + \frac{R}{{100}}} \right]^T} - P\)

Calculation:

Since, interest is calculated half-yearly, the rate will be halved and time will be doubled.

\(C.I = P{\left[ {1 + \frac{R}{{100}}} \right]^T} - P\)

\(\Rightarrow C.I = 48000{\left[ {1 + \frac{5}{{100}}} \right]^3} - \;48000\)

\(\Rightarrow C.I = 48000 \times \frac{{105}}{{100}} \times \frac{{105}}{{100}} \times \frac{{105}}{{100}} - \;48000\)

\(\Rightarrow C.I = 55566 - 48000\)

\(\Rightarrow C.I=7,566\)

∴ The compound interest will be Rs. 7,566.

Last updated on Sep 29, 2022

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  • question_answer Find the compound interest on Rs. 48,000 for one year at 8% per annum when compounded half yearly.

    Answer:

    Principal (P) = Rs. 48,000
    Rate (R) = 8% p.a.
    Time (n) = 1 year
    Interest is compounded half yearly
    A = P \[{{\left( 1+\frac{R}{200} \right)}^{2n}}\]
    \[=48000{{\left( 1+\frac{8}{200} \right)}^{2}}\]
    \[=48000\times \frac{26}{25}\times \frac{26}{25}\]
    \[=\text{ }76.8\times 26\times 26\]
    = Rs. 51,916.80
    Therefore, Compound Interest\[=\text{ }A\text{ }\text{ }P\]
    = Rs. \[\left( 519,16.8048,000 \right)\]
    = Rs. 3,916.80
         

Step-by-step explanation:

Principal = Rs.48000

Time = 1 year

Rate of interest = 8%

No. of compounds per year = n = 2

A=P(1+\frac{r}{n})^{nt}

A=48000(1+\frac{0.08}{2})^{2}

A=51916.8

Compound interest =51916.8-48000=Rs.3916.8

Hence the compound interest on Rs 48000 for one year at 8% per annum when compounded half yearly is Rs.3916.8

#Learn more:

The compound interest on rupees 15625 for one and half years at 8% per annum compounded half yearly is​

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Rs. 51916Rs. 51916.80Rs. 3916.80Rs. 3910.80

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What will the compound interest on Rs 40000 at 8% per annum when interest is compounded half yearly?

40000xx(1+8/100)^(t)` <br> `=Rs. 40000xx(1+2/25)^(t)` <br> `=Rs. 40000xx(27/25)^(t)` <br> As per questio `40000xx(27/25)^(t)=46656` <br> or `(27/25)^(t)=46656/40000` <br> or `(27/25)^(t)=729/625=(27/25)^(2)impliest=2` <br> Hence the required time `=2` years.

What is the difference between the interests on 50000 for one year at 8% per annum compounded half yearly and yearly?

The difference between the compound interest and the simple interest compounded half yearly on an amount of Rs. 50000 for 1 year is Rs. 180.

How do you calculate compounded half yearly?

The formula for calculation of compound interest for half year is CI = p(1 + {r/2}/100)2t. - p. Here in this formula 'A' is the final amount, 'p' is the principal, and 't' is the time in years.

What is the compound interest on Rs 8000 at 20 per annum for 9 months compounded quarterly?

The interest compounded quarterly for 9 months means t=912year. So, the compound interest on Rs 8000 at 20% per annum for 9 months compounded quarterly is 1261.