# Aptitude Logical Reasoning Simple Interest 2020 DRDO Part 4

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1. What amount does Kiran get if he invests Rs. 18000 at p.a. simple interest for four years?

A. Rs. 24800

B. Rs. 28400

C. Rs. 24400

D. Rs. 28800

E. None of these

Answer: D

2. How much interest can a person get on Rs. 8200 at p.a. simple interest for a period of two years and six months?

A. Rs. 3770

B. Rs. 2850.50

C. Rs. 3587.50

D. Rs. 3750

E. None of these

Answer: C

3. In how many years does a sum of Rs. 5000 yield a simple interest of Rs. 16500 at p.a.?

A. 22

B. 24

C. 25

D. 23

E. None of these

Answer: A

4. A certain sum becomes Rs. 20720 in four years and 24080 in six years at simple interest. Find sum and rate of interest?

A. Rs. 12000; p.a.

B. Rs. 14000; p.a.

C. Rs. 12000; p.a.

D. Rs. 14000; p.a.

E. None of these

Answer: B

5. A sum of money triples itself in twelve years at simple interest. Find the rate of interest?

A. p.a.

B. p.a.

C. p.a.

D. p.a.

E. None of these

Answer: E

6. A certain sum is invested at simple interest at p.a. for two years instead of investing at p.a. for the same time period. Therefore the interest received is more by Rs. 840. Find the sum?

A. Rs. 7000

B. Rs. 8500

C. Rs. 8000

D. Rs. 7500

E. None of these

Answer: A

7. An amount of Rs. 3000 becomes Rs. 3600 in four years at simple interest. If the rate of interest was more, then what was be the total amount?

A. Rs. 3800

B. Rs. 3780

C. Rs. 3720

D. Cannot be determined

E. None of these

Answer: C

8. A certain sum becomes four times itself at simple interest in eight years. In how many years does it become ten times itself?

A. 21

B. 25

C. 23

D. 27

E. 24

Answer: E

9. At what rate of interest is an amount doubled in two years, when compounded annually?

A.

B.

C.

D.

E. None of these

Answer: B

10. Vijay lent out an amount Rs. 10000 into two parts, one at p.a. and the remaining at p.a. both on simple interest. At the end of the year he received Rs. 890 as total interest. What was the amount he lent out at pa.a?

A. Rs. 6000

B. Rs. 5500

C. Rs. 4500

D. Rs. 5000

E. None of these

Answer: B