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What will be the compound interest on Rs. 25000 after 3 years at the rate of 12 % per annum

  • Rs 10123.20
  • Rs 10123.30
  • Rs 10123.40
  • Rs 10123.50

Answer: Option A

Explanation:

(25000×(1+12100)3)=>25000×2825×2825×2825=>35123.20



So Compound interest will be 35123.20 - 25000
= Rs 10123.20

Similar Questions :

1. A sum of money invested at compound interest to Rs. 800 in 3 years and to Rs 840 in 4 years. The rate on interest per annum is.

  • 4%
  • 5%
  • 6%
  • 7%

Answer: Option B

Explanation:

S.I. on Rs 800 for 1 year = 40

Rate = (100*40)/(800*1) = 5%

2. The least number of complete years in which a sum of money put out at 20% compound interest will be more than doubled is

  • 4 years
  • 5 years
  • 6 years
  • 7 years

Answer: Option A

Explanation:

As per question we need something like following

P(1+R100)n>2P(1+20100)n>2(65)n>265×65×65×65>2



So answer is 4 years

3. Albert invested amount of 8000 in a fixed deposit for 2 years at compound interest rate of 5 % per annum. How much Albert will get on the maturity of the fixed deposit.

  • Rs. 8510
  • Rs. 8620
  • Rs. 8730
  • Rs. 8820

Answer: Option D

Explanation:

=>(8000×(1+5100)2)=>8000×2120×2120=>8820


4. Find the compound interest on Rs.16,000 at 20% per annum for 9 months, compounded quarterly

  • Rs 2520
  • Rs 2521
  • Rs 2522
  • Rs 2523

Answer: Option C

Explanation:

Please remember, when we have to calculate C.I. quarterly then we apply following formula if n is the number of years

Amount=P(1+R4100)4n



Principal = Rs.16,000;
Time=9 months = 3 quarters;
Rate = 20%, it will be 20/4 = 5%

So lets solve this question now,

Amount=16000(1+5100)3=18522C.I=18522−16000=2522

5. At what rate of compound interest per annum will a sum of Rs. 1200 become Rs. 1348.32 in 2 years

  • 3%
  • 4%
  • 5%
  • 6%

Answer: Option D

Explanation:

Let Rate will be R%

1200(1+R100)2=134832100(1+R100)2=134832120000(1+R100)2=1123610000(1+R100)=106100=>R=6%

Read more from - Compound Interest Questions Answers
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