Simple Interest Questions for class 7
1. How much simple interest will Rs 2000 earn in 18 months at 6% per Annum?
(a) Rs 120
(b) Rs 180
(c) Rs 216
(d) Rs 240
Answer is (b) Rs 180
2. A man had Rs 16000, per of which he learn at 8% per annum and the rest at 9% per annum simple interest. If he totals annual interest be Rs 1340, the money lent at 8% is:
(a) Rs 6000
(b) Rs 8000
(c) Rs 10000
(d) Rs 12000
Answer is (c) Rs 10000
3. A man deposited Rs 400 2 years, Rs 550 for 4 years and Rs 1200 for 6 years. He received Rs 1020 as the total simple interest. The rate of interest per annum is:
(a) 8%
(b) 4%
(c) 5%
(d) 6%
Answer is (b) 4%
4. A sum of money amounts to Rs 5200 in 5 years and to Rs 5680 in 7 years at simple interest. The rate of interest per annum is:
(a) 3%
(b) 4%
(c) 5%
(d) 6%
Answer is (d) 6%
5. A sum of money at simple interest amounts to Rs 2240 in 2 years and Rs 2600 in 5 years. The sum is:
(a) Rs 1880
(b) Rs 2000
(c) Rs 2120
(d) Rs Data inadequate
Answer is (b) Rs 2000
6. At which sum the simple interest at the rate of 3 
% per annum will be Rs
210 in 2 
years?
(a) Rs 1580
(b) Rs 2400
(c) Rs 2800
(d) None of these
Answer is (b) Rs 2400
7. A person invests money in three
different schemes for 6 years, 10 years and 12 years at 10%, 12% and 15% simple
interest respectively. At the completion of each scheme, he gets the same
interest. The ratio of his investment is:
(a) 2:3:4
(b) 3:4:2
(c) 3:4:6
(d) 6:3:2
Answer is (d) 6:3:2
8. Simple interest on Rs 500 for 4 years
at 6.25% per annum is equal to the simple interest on Rs 400 at 5% per annum
for a certain period of time. The period of time is:
(a) 4 years
(b) 5 years
(c) 6
Years
(d) 8
Years
Answer is(c) 6 Years
9. A borrows Rs 800 at the rate of 12%
per annum simple interest and B borrows Rs 910 at the rate of 10% per annum
simple interest. In how many years will their amounts of debts be equal?
(a) 18 Years
(b) 22 Years
(c) 22 Years
(d) 24 Years
Answer is (c) 22 Years
10. Rs 6000 become Rs 7200 in 4 years at
a certain rate of interest. If the rate becomes 1.5 times of itself, the amount
of the same principal in 5 years will be:
(a) Rs 8000
(b) Rs8250
(c) Rs 9000
(d) Rs 9250
Answer is (b) Rs8250
11. If the simple interest for 6 years be
equal to 30% of the principal, it will be equal to the principle after
(a) 10 Years
(b) 20 Years
(c) 22 Years
(d) 30 Years
Answer is (b) 20 Years
12. Kruti took a loan at simple interest
at 6% in the first year with an increase of 0.5% in each subsequent year. She
paid Rs 3375 as Interest after 4 years. How much loan did she take?
(a) Rs 12500
(b) Rs 15800
(c) Rs 33250
(d) Cannot be determined
Answer is (a) Rs 12500
13. At what rate of simple interest a
certain sum will be doubled in 15 years?
simple interest questions for class 7
(a) 5%p.a.
(b) 6% p.a.
(c) 6 p.a.
(d) 7
p.a.
Answer is(c) 6 p.a.
14. A certain sum is invested on simple
interest. If it trebles in 10 years, what is the rate of interest?
(a) 18% p.a.
(b) 20% p.a.
(c) 22% p.a.
(d) 25% p.a.
Answer is (b) 20% p.a.
15. In how many years, a sum will be
thrice of it at the rate of 10% per annum?
(a) 15 Years
(b) 20 Years
(c) 30 Years
(d) 40 Years
Answer is (b) 20 Years
16. A man invests 
of his capital at 7% p.a. at 8% p.a. and the remainder at 10% p.a. If
his annual income Rs 561, the capital is:
(a) Rs 5400
(b) Rs 3650
(c) Rs 6600
(d) Rs 7200
Answer is (c) Rs 6600
17. The sum of money that will give Re 1
as simple interest per day at the rate of 5% per annum, is :
(a) Rs 730
(b) Rs 3650
(c) Rs 7300
(d) Rs 36500
Answer is (c) Rs 7300
18. A certain sum of money becomes three
times of itself in 20 years at simple interest. In how many years does it
become double of itself at the same rate?
(a) 8 Years
(b) 10 Years
(c) 12 Years
(d) 14 Years
Answer is (b) 10 Years
19. If the simple interest on certain sum
of money for 15 months at 7% p.a. exceeds the
simple interest on the same sum of 8 month at 12% p.a. by Rs 32.50 the
sum is:
(a) Rs 312
(b) Rs 312.00
(c) Rs 3120
(d) Rs 3120.50
Answer is (c) Rs 3120
20. Rs 2000 amount to Rs 2600 in 5 years
at the simple interest. If the interest were increased by 3%, it would amount
to how much?
(a) Rs 2900
(b) Rs 3200
(c) Rs 3600
(d) None of these
Answer is (a) Rs 2900
21. If the annual rate of simple interest
increases from 10% to 12%, a man’s annual
income increases by Rs 1250. The principle is:
(a) Rs 45000
(b) Rs 50000
(c) Rs 60000
(d) Rs 65000
Answer is (b) Rs 50000
simple interest questions for class 7
22. Simple interest on a certain sum at a
certain annual rate of interest is
of the sum. If the numbers representing rate
per cent and time in years be equal, then rate per cent per annum is :
(a) 85%
(b) 11%
(c) 12%
(d) 12%
Answer is (d) 12%
23. On a certain sum, the simple interest
at the end of 12 years become of the sum. What is the rate per cent annum?
(a) 4%
(b) 5%
(c) 6%
(d)
8%
(e) None of these
Answer is (c) 6%
24. A farmer borrowed Rs 3600 at 15% per
annum. At the end of 4 years he cleared his account by paying Rs 4000 and goat.
The cost of the goat is:
(a) Rs 1000
(b) Rs 1200
(c) Rs 1550
(d) Rs 1760
Answer is (d) Rs 1760
25. The simple interest at x% p.a. for x
years will be Rs x on a sum of:
(a) Rs x
(b) Rs 100x
(c) Rs 100/x
(d) Rs 100/x2
Answer is (c) Rs 100/x
26. X, Y, Z are three sums of money such
that y is the simple interest on x and z is the simple interest on y for the
same time and rate. Which of the following is correct?
(a) xyz=1
(b) z2
(b) x2
(d) y2
Answer is (d) y2
27. A sum of money invested at a certain
rate of simple interest doubles itself in 12 years 6 months. It will treble
itself at the same rate of interest in
(a) 18 Years 9 months
(b) 20 Years 8 months
(c) 22 Years
(d) 25 years
Answer is (d) 25 years
28. In how much time would the simple
interest on a certain sum be 0.125 times the principle at 10% per annum?
(a) 1 years
(b) 1 years
(c) 2 years
(d) 2 years
Answer is (a) 1 years
simple interest questions for class 7
29. A sum of Rs 600 amounts to Rs 720 in
4 years. What will it amount to if the rate of interest is increased by 2%?
(a) Rs 724
(b) Rs 648
(c) Rs 768
(d) Rs 792
Answer is (c) Rs 768
30. The difference between the simple interest
received from two different sources on Rs 1500 for 3 years in Rs 13.50. The difference between their rates of interests is:
(a) 0.1%
(b) 0.2%
(c) 0.3%
(d) 0.4%
Answer is (c) 0.3%
31. Mr. A lends 40% of the sum at 15%
p.a. 50% of the rest sum at 10% p.a. and the rest at 18% p.a. simple interest.
What would be the rate of interest per annum calculated on the whole sum?
(a) 13.33%
(b) 13.4%
(c) 14.33%
(d) 14.4%
(e) None of these
Answer is (d) 14.4%
32. Wasim borrowed some money at 6% p.a.
simple interest for the first 4 years, 8% p.a. for the next 3 years and 10%
p.a. for a period beyond 7 years. At the end of 12 years, he earned Rs 5880 as
simple interest. How much money did he borrow?
(a) Rs 6000
(b) Rs 8000
(c) Rs 9000
(d) Rs 10000
(e) None of these
Answer is (a) Rs 6000
33. What annual payment will discharge
debts of Rs 580 due in 5 years at 8% p.a?
(a) Rs 166.40
(b) Rs 65.60
(c) Rs 100
(d) Rs 120
Answer is (c) Rs 100
34. A man loses Rs 55.50 yearly when the
annual rate of interest falls from 11.5% to 10%. His capital is:
(a) Rs 3700
(b) Rs 7400
(c) Rs 8325
(d) Rs 11100
Answer is (a) Rs 3700
35. A money lender finds that due to fall
in the annual rate of interest from 8% to 7 %, his yearly income diminishes by Rs 61.50.
His capital is:
(a) Rs 224000
(b) Rs 23800
(c) Rs 24600
(d) Rs 26000
Answer is (c) Rs 24600
36. A commission agent allows a rebate of
2% to an investor while the company pays on interest of 15% on the investment.
What rate of interest does the investor actually earn on his investment?
(a) 17%
(b) 16%
(c) 17%
(d) 15%
Answer is (d) 15%
37. A sum of Rs 1000 is lent partly at 8%
and the remaining at 10% p.a. If the yearly interest on the average is 9.2%,
the money lent at 10% is:
(a) Rs 6000
(b) Rs 5500
(c) Rs 5000
(d) Rs 4500
Answer is (a) Rs 6000
38. A sum of Rs 5000 was lent party at 6%
and partly at 9% simple interest. If the total annual interest be Rs 390, the
ratio in which the money was lent at given rates is:
(a) 1:1
(b) 1:2
(c) 2:3
(d) 3:2
Answer is (c) 2:3
39. The difference between the interests
received from two different banks on Rs 5000 for two years is Rs 25. The
difference between their rates is:
(a) 1%
(b) 2.5%
(c) 0.5%
(d) 0.25%
Answer is (d) 0.25%
40. A borrows Rs 8000 at 12% p.a. simple
interest and B borrows Rs 9100 at 10% p.a. simple interest. In how many years
will their amounts of debts be equal?
(a) 18 years
(b) 20 years
(c) 22 years
(d) 24 years
Answer is (c) 22 years
41. Rs 6000 amount to Rs 7920 in 4 years
at a certain rate of interest. If the rate becomes 1.5 times of itself, the
amount of the same principle in 5 years will be:
(a) Rs 9240
(b) Rs 9600
(c) Rs 9000
(d) Rs 9450
Answer is (b) Rs 9600
simple interest questions for class 7
42. The least number of years in which
the simple interest on Rs 2600 at 6% simple interest will
be exact number of rupees, is
(a) 2 years
(b) 3 years
(c) 4 years
(d) 5 years
Answer is (b) 3 years
43. A man distributed Rs 25300 among his
three sons A, B, C in such a way that the amounts of their parts at 10% simple
interest in 2 years, 3 years and 4 years will be equal. A’s share is:
(a) Rs 7800
(b) Rs 8400
(c) Rs 9100
(d) Rs None of these
Answer is (c) Rs 9100
44. With a given rate of simple interest,
the ratio of principle and amount for a certain period of time is 4:5 after 3
years, with the same rate of interest, the ratio of the principle and amount
becomes 5:7 the rate of interest per annum is:
(a) 4%
(b) 5%
(c) 6%
(d) 7%
Answer is (b) 5%
45. RS 1000 is invested at 5% p.a. simple
interest. If the interest is added to the principle after every 10 years, the
amount will become Rs 2000 after
(a) 15 years
(b) 16 years
(c) 18 years
(d) 20 Years
Answer is (b) 16 years
46. The simple interest on a sum of 5
years is two fifth of the sum. The rate per cent per annum is
(a) 10%
(b) 8%
(c) 6%
(d) 12%
Answer is(b) 8%
47. Anand took some loan at 12% per annum
simple interest and paid back Rs 17584 at the end of 3 years 4 months. How much
money did he borrow?
(a) Rs 13650
(b) Rs 14540
(c) Rs 12560
(d) Rs 15650
Answer is (c) Rs 12560
48. A sum of Rs 10 is lent to be returned
in 11 monthly installments of Re 1 each interest being simple. The rate of
interest is.
(a) 9%
(b) 10%
(c) 11%
(d) 21%
Answer is (d) 21%
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simple interest questions for class 7
Simple Interest Questions for class 7
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