A sum of money becomes 1.728 times in 3 years as compound interest. the rate of interest is

Examination Questions on Simple and Compound Interest

Amount = Principle + InterestSimple Interest = (Principle x Rate of Interest X Time period)/100Compound Interest = Principle(1 + r/100)n – Principle

r = rate of interest and n = time period

Click on the option you think is right and then check by clicking on the Show Answer button. You can change your option as many times as you like.

1. A sum of money becomes 3 times in 5 years. In how many years will the same sum become 6 times at the same rate of simple interest?  

  1. 15 years
  2. 12.5 years
  3. 10 years
  4. 7.5 years

2. What is the compound interest on Rs. 1600 at 25% per annum for 2 years compounded annually?  

  1. Rs. 700
  2. Rs. 750
  3. Rs. 800
  4. Rs. 900

3. A certain sum at simple interest amounts to Rs. 1350 in 5 years and to Rs. 1620 in 8 years. What is the sum?  

  1. Rs. 700
  2. Rs. 800
  3. Rs. 900
  4. Rs. 1000

4. The sum which amounts to Rs. 364.80 in 8 years at 3.5% simple interest per annum is:  

  1. Rs. 285
  2. Rs. 280
  3. Rs. 275
  4. Rs. 270

5. What is the least number of complete years in which a sum of money at 20% compound interest will be more than doubled?  

  1. 7
  2. 6
  3. 5
  4. 4

6. A sum of money on compound interest amounts to Rs. 9,680 in 2 years and to Rs. 10,648 in 3 years. What is the rate of interest per annum?  

  1. 5%
  2. 10%
  3. 15%
  4. 20%

7. A sum of money lent on simple interest trebles itself in 15 years and 6 months. In how many years will it be doubled?  

  1. 6 years and 3 months
  2. 7 years and 9 months
  3. 8 years and 3 months
  4. 9 years and 6 months

8. The simple interest on a certain sum of money for 3 years at 8% per annum is half the compound interest on Rs. 4,000 for 2 years at 10% per annum. What is the sum placed on simple interest?  

  1. Rs. 1,550/-
  2. Rs. 1,650/-
  3. Rs. 1,750/-
  4. Rs. 2,000/-




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A sum of money becomes 1.331 t...

Updated On: 27-06-2022

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Text Solution

`8%``7.5% ``10% ``50% `

Answer : C

Answer

Step by step solution by experts to help you in doubt clearance & scoring excellent marks in exams.

646905783

0

500

2:58

एक धनराशि 3 वर्षों के चक्रवृद्धि ब्याज पर 1.331 गुनी हो जाती है। तदनुसार, वह व्याज दर कितनी है?

510056000

0

6.8 K

3:15

If a sum of money on compound interest becomes three times in 4 years, then at the same interest rate, the sum will become 27 times in:

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1.2 K

1.7 K

2:57

If a sum of money on compound interest becomes three times in 4 years, then at the same interest rate, the sum will become 27 times in `:`

646896470

0

1.8 K

2:14

कोई धन चक्रवृद्धि ब्याज से 3 वर्ष में अपना आठ गुना होता है, ब्याज की दर क्या होगी?

497333316

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9.0 K

1:45

A sum of money becomes eight times of itself in 3 years at compound interest. The rate of interest per annum is

643431399

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6.5 K

1:58

A sum of money becomes eight times of itself in 3 years at compound interest. The rate of interest per annum is

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A sum of money becomes 1.728 times in 3 years as compound interest. the rate of interest is

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What will be the ratio of 3 years of compound interest and simple interest on a money amount at the rate of 8% per annum?

CI more than SI =24(2×100)=8. 33%

At what rate per cent compound interest does a sum of money becomes 1.44 times of itself in 2 years?

Detailed Solution A sum becomes 1.44 times of itself. ∴ The rate of interest is 20%.

At what rate percent compound interest does a sum of money becomes 27 times in 3 years?

The rate of interest per annum is 200 %.

At what rate percent compound interest does a sum of money becomes 9 times in 2 years?

Detailed Solution The sum becomes 9 times in 2 years. Calculation: Let the principal be 'P'. ∴ The rate of interest is 200%.