Simple and compound interest Questions and answers

  1. Aptitude
    1. Compound interest
    2. Boat and Stream
    3. Trains
    4. Percentage
    5. Discount
    6. Mixture and Allegation
    7. Unitary Method
    8. Work and Wages
    9. Pipes and Cisterns
    10. Linear Equations
    11. Approximation
    12. Word problems
    13. Number System
    14. Time and Distance
    15. Average
    16. Ratio and Proportions
    17. Profit and Loss
    18. Partnership
    19. Permutation and combination
    20. Probability
    21. Problem on ages
    22. Time and work
    23. Simple and compound interest
    24. Mensuration
    25. Number series
61). The number of years for an amount of money to triple at 16% simple interest is
A). \( \Large 12\frac{1}{2} \)
B). 10 years
C). \( \Large 8\frac{1}{2} \) years
D). 6 years
62). The rate of interest at which amount of Rs.1800 on compound interest becomes Rs.1984.50 in 2 years is
A). 3%
B). 4%
C). 5%
D). 6%
63). A tree increases annually by one-fourth of its height. By how much will it increase after 2 years, if it stands today 64 cm high ?
A). 76 cm
B). 80 cm
C). 100 cm
D). 105 cm
64). An amount of Rs.x at compound interest at 20% p.a. for 3 years becomes y. What is y : x?
A). 3 : 1
B). 36 : 25
C). 216 : 125
D). 125 : 216
65). At what rate percent per annum calculated in simple interest will a sum of money double in 10 years?
A). 10%
B). 12%
C). 12.50%
D). 13.50%


66). An amount at compound interest doubles itself in 4 years. In how many years will the amount becomes 8 times itself?
A). 8 Years
B). 12 Years
C). 16 Years
D). 24 Years
67). A man invested Rs.1000 on a simple interest at a certain rate and Rs.1500 at 2% higher rate. The total interest in three years is Rs.390. What is the rate of interest for Rs.1500?
A). 6%
B). 5%
C). 4%
D). 8%
68). What is the simple interest. if an amount of Rs.1000 is invested for 4 years at the rate of 20% p.a.?
A). Rs.800
B). Rs.400
C). Rs.1200
D). Rs.600
69). An investment becomes Rs.720 after adding a simple interest of Rs.120 earned for a period of time at 5% p.a. How long was the principal invested?
A). 3 years
B). 4 years
C). 5 years
D). 6 years
70). On what .sum of money lent at 9% p.a. for 4 years will the simple interest amount to Rs.864?
A). Rs.4800
B). Rs.3600
C). Rs.2400
D). Rs.6000
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