Simple Interest problems
- 1. A person divided a sum of Rs. 17,200 into three parts and invested at 5%. 6% and 9% per annum simple interest. At the end of two years, he got the same interest on each part of money. What is the money invested at 9%?
Options- A. Rs. 3,200
- B. Rs. 4,000
- C. Rs. 4,800
- D. Rs. 5000 Also asked in: Bank Exams
Correct Answer: Rs. 4,000
Explanation:
Let sum invested @ 5% be P1, @ 6% be P2 then @ 9% =17200-(P1+P2)
So according to question
P1*5*2/100 = P2*6*2/100 or P1 = (6/5) P2
Also P2*6*2/100 = [17200-(P1+P2)]*9*2/100
Or 2 P2 = [17200?(11/5)P2] * 3
Or (2 + 33/5)P2 = 17200 * 3
P2 = 17200 * 3 * 5 / 43 = 6000
So P1 = 6/5 P2 = 7200
So Sum invested @ 9% = 17200?(6000+7200) = Rs 4000
- 2. A sum fetched a total simple interest of Rs.5,400 at the rate of 12.5 %/yr in 4 years. What is the sum (in Rs)?
Options- A. 11800
- B. 12800
- C. 9800
- D. 10800 Also asked in: Bank Exams
Correct Answer: 10800
- 3. A person borrows some money for 4 years at the rate of simple interest. If the ratio of principal and total interest is 5 : 1, then what is the rate ( in percentage) of interest?
Options- A. 5
- B. 25
- C. 10
- D. 20 Also asked in: Bank Exams
Correct Answer: 5
- 4. A person borrows some money for 8 years at a rate of simple interest. If the ratio of principal and total interest is 5 : 8, then what is the rate ( inpercentage) of interest?
Options- A. 10
- B. 20
- C. 25
- D. 30 Also asked in: Bank Exams
Correct Answer: 20
- 5. A sum of Rs. 3000 yields an interest of Rs. 1080 at 12% per annum simple interest in how many years ?
Options- A. 4 Years
- B. 3 Years
- C. 5 Years
- D. 2.5 Years Also asked in: Bank Exams
Correct Answer: 3 Years
- 6. Simple interest on a certain sum of money for 3 years at 18% per annum is half the compound interest on Rs. 9000 for 2 years at 10% per annum. The sum placed on simple interest is:
Options- A. Rs 3500
- B. Rs 875
- C. Rs 1750
- D. Rs 1400 Also asked in: Bank Exams
Correct Answer: Rs 1750
- 7. The simple interest on a certain sum of money at the rate of 5% per annum for 8 years is Rs. 840 . Rate of interest for which the same amount of interest can be received on the same sum after 5 years is
Options- A. 7%
- B. 8%
- C. 9%
- D. 10% Also asked in: Bank Exams
Correct Answer: 8%
- 8. A sum becomes Rs 1392 in 2 years and Rs 1488 in 3 years at simple interest. What is the rate (in percentage) of interest per annum?
Options- A. 8
- B. 10
- C. 12
- D. 8.5 Also asked in: Bank Exams
Correct Answer: 8
- 9. The rate of simple interest per annum at which a sum of money double itself in 162?3 yrs. is
Options- A. 4%
- B. 5%
- C. 6%
- D. 6 2/3% Also asked in: Bank Exams
Correct Answer: 6%
- 10. A sum of Rs. 4000 is lent out in two parts, one at 8% simple interest and the other at 10% simple interest. If the annual interest is Rs. 352. The sum lent at 8% is
Options- A. Rs. 2900
- B. Rs. 2200
- C. Rs. 2400
- D. Rs. 3100 Also asked in: Bank Exams
Correct Answer: Rs. 2400
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