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**Quantitative Aptitude Questions: Problems on Simple Interest -** In this section you can learn and practice **Quantitative Aptitude Questions** based on "**Simple Interest**" and improve your skills in order to face the competitive examination and various entrance test (CAT, GATE, GRE, MAT, Bank Exam, Railway Exam etc.) with full confidence. You can easily solve all kind of Quantitative Aptitude Questions based on Simple Interest by practicing the objective type exercises given below also get shortcut methods to solve Simple Interest Questions.

**31-**If simple interest on a certain sum of money for 4 years at 5% per annum is same as the simple interest on Rs. 560 for 10 years at the rate of 4% per annum then the sum of money is:

- A.1190
- B.1120
- C.1210
- D.1280
- E.None of these

**32-**The difference between the simple interest received from two different sources on Rs. 1500 for 3 years is Rs. 13.50. The difference between their rate of interest is:

- A.0.1%
- B.0.2%
- C.0.3%
- D.0.4%
- E.None of these

**33-**David invested certain amount in three different schemes A, B and C with the rate of interest 10% p.a., 12% p.a. and 15% p.a. respectively. If the total interest accrued in one year was Rs. 3200 and the amount invested in Scheme C was 150% of the amount invested in Scheme A and 240% of the amount invested in Scheme B, what was the amount invested in Scheme B?

- A.Rs 5000
- B.Rs 6500
- C.Rs 8000
- D.Rs 10000
- E.None of these

**34-**A sum of Rs. 1550 was lent partly at 5% and partly at 8% p.a. simple interest. The total interest received after 3 years was Rs. 300. The ratio of the money lent at 5% to that lent at 8% is:

- A.5 : 8
- B.8 : 5
- C.16 : 15
- D.31 : 6
- E.None of these

**35-**A sum was put a simple interest at a certain rate for 2 years. Had it been put at 3% higher rate, it would have fetched Rs. 72 more. The sum is:

- A.Rs. 1200
- B.Rs. 1500
- C.Rs. 1600
- D.Rs. 1800
- E.None of these

**36-**A sum of money becomes 7/6 of itself in 3 years at a certain rate of simple interest. The rate per annum is:

- A.5 5/9%
- B.6 5/9%
- C.18%
- D.25%
- E.None of these

**37-**A certain sum is invested for T years. It amounts to Rs. 400 at 10% per annum. But when invested at 4% per annum, it amounts to Rs. 200. Find the time (T)?

- A.39 years
- B.41 years
- C.45 years
- D.50 years
- E.None of these

**38-**If the simple interest on a certain sum of money for 2 years is one – fifth of the sum, then the rate of interest per annum is:

- A.7%
- B.8%
- C.9%
- D.10%
- E.None of these

**39-**The Sum of money that will produce Rs. 1770, interest in 7 1/2 years at 8% simple interest per annum is:

- A.Rs 2950
- B.Rs 2800
- C.Rs 3120
- D.Rs 3200
- E.None of these

**40-**The simple interest on Rs. 1820 from March 9, 2003 to May 21, 2003 at 7.5% rate will be:

- A.22.50
- B.27.30
- C.28.80
- D.29
- E.None of these