EduSahara™ Worksheet

Question 1

1.

Out of 85 articles, 8 were damaged. What is the percentage of good articles?

(i)

88.59%
(ii)

92.59%
(iii)

90.59%
(iv)

91.59%
(v)

89.59%

Question 2

2.

Out of 765 articles, 38 were damaged. What is the percentage of good articles?

(i)

97.03%
(ii)

94.03%
(iii)

96.03%
(iv)

93.03%
(v)

95.03%

Question 3

3.

4.00% of a number is 12.00. What is 7.00% of the number?

(i)

22
(ii)

23
(iii)

21
(iv)

20
(v)

19

Question 4

4.

19.00% of a number is 456.00. What is 38.00% of the number?

(i)

912
(ii)

914
(iii)

910
(iv)

911
(v)

913

Question 5

5.

The cost of an article is ₹70.00. If it is increased by 8.00%, what is the new cost of the article?

(i)

₹74.60
(ii)

₹73.60
(iii)

₹76.60
(iv)

₹75.60
(v)

₹77.60

Question 6

6.

The cost of an article is ₹30.00. If it is decreased by 4.00%, what is the new cost of the article?

(i)

₹28.80
(ii)

₹26.80
(iii)

₹30.80
(iv)

₹29.80
(v)

₹27.80

Question 7

7.

The population of a city is 50000. If the rate of increase in population is 3.00% per annum, what is the population after 3 year(s)?

(i)

54616
(ii)

54646
(iii)

54636
(iv)

54626
(v)

54656

Question 8

8.

The population of a city is 20000. If the rate of decrease in population is 5.00% per annum, what is the popoulation after 5 year(s)?

(i)

15466
(ii)

15486
(iii)

15496
(iv)

15476
(v)

15456

Question 9

9.

If 5.00% and 7.00% are two successive changes, then the overall change is

(i)

12.35%
(ii)

13.35%
(iii)

10.35%
(iv)

14.35%
(v)

11.35%

Question 10

10.

If 32.00% and 33.00% are two successive changes, then the overall change is

(i)

74.56%
(ii)

77.56%
(iii)

73.56%
(iv)

75.56%
(v)

76.56%

Question 11

11.

The present value of a machine is ₹7000.00. Suppose it depreciates at the rate of 6.00% per annum, what is the value of the machine after 2 year(s)?

(i)

₹6186.20
(ii)

₹6183.20
(iii)

₹6184.20
(iv)

₹6187.20
(v)

₹6185.20

Question 12

12.

The present value of a machine is ₹7000.00. Suppose it depreciates at the rate of 3.00% per annum, what was the value of the machine 3 year(s) ago?

(i)

₹7668.78
(ii)

₹7669.78
(iii)

₹7671.78
(iv)

₹7667.78
(v)

₹7670.78

Question 13

13.

If the price of a commodity increases by 3.00%, the reduction in consumption so as not to increase the expenditure is

(i)

2.91%
(ii)

4.91%
(iii)

0.91%
(iv)

3.91%
(v)

1.91%

Question 14

14.

If the price of a commodity decreases by 7.00%, the increase in consumption so as to match the expenditure is

(i)

6.53%
(ii)

8.53%
(iii)

5.53%
(iv)

9.53%
(v)

7.53%

Question 15

15.

If 'a' exceeds 'b' by
9.00%
,
then 'b' is short of 'a' by

(i)

9.26%
(ii)

6.26%
(iii)

10.26%
(iv)

8.26%
(v)

7.26%

Question 16

16.

If 'a' is short of 'b' by
5.00%
,
then 'b' exceeds 'a' by

(i)

6.26%
(ii)

4.26%
(iii)

3.26%
(iv)

7.26%
(v)

5.26%

Question 17

17.

If the radius of a circle is increased by 10.00%, its area will increase by

(i)

23.00%
(ii)

21.00%
(iii)

19.00%
(iv)

22.00%
(v)

20.00%

Question 18

18.

If the price of a commodity increases by r%, the reduction in consumption so as not to increase the expenditure is

(i)

[

100 − r

r

✕

100

]

%
(ii)

[

r

100 − r

✕

100

]

%
(iii)

[

100 + r

r

✕

100

]

%
(iv)

[

r

100 + r

✕

100

]

%

Question 19

19.

If the price of a commodity decreases by r%, the increase in consumption so as not to decrease the expenditure is

(i)

[

100 + r

r

✕

100

]

%
(ii)

[

100 − r

r

✕

100

]

%
(iii)

[

r

100 + r

✕

100

]

%
(iv)

[

r

100 − r

✕

100

]

%

Question 20

20.

If 'a' exceeds 'b' by x%, then 'b' is short of 'a' by

(i)

[

x

100 + x

✕

100

]

%
(ii)

[

100 − x

x

✕

100

]

%
(iii)

[

x

100 − x

✕

100

]

%
(iv)

[

100 + x

x

✕

100

]

%

Question 21

21.

If 'a' is short of 'b' by x%, then 'b' exceeds 'a' by

(i)

[

100 + x

x

✕

100

]

%
(ii)

[

x

100 − x

✕

100

]

%
(iii)

[

100 − x

x

✕

100

]

%
(iv)

[

x

100 + x

✕

100

]

%

Question 22

22.

If initial value is V, new value after r% increase is

(i)

100 − r

100

✕

V
(ii)

100 + r

r

✕

V
(iii)

100 − r

r

✕

V
(iv)

100 + r

100

✕

V

Question 23

23.

If initial value is V, new value after r% decrease is

(i)

100 + r

100

✕

V
(ii)

100 − r

r

✕

V
(iii)

100 + r

r

✕

V
(iv)

100 − r

100

✕

V

Question 24

24.

In a school of 600 students, 90 students are boys. The number of boys who failed the final exam is 50. The number of girls who failed is 170. The percentage of boys who failed the exam =

(i)

55.56%
(ii)

54.56%
(iii)

56.56%
(iv)

53.56%
(v)

57.56%

Question 25

25.

In a school of 700 students, 210 students are boys. The number of boys who failed the final exam is 140. The number of girls who failed is 390. The percentage of girls who failed the exam =

(i)

79.59%
(ii)

78.59%
(iii)

77.59%
(iv)

80.59%
(v)

81.59%

Question 26

26.

In a school of 500 students, 375 students are boys. The number of boys who failed the final exam is 125. The number of girls who failed is 65. The percentage of students who passed the exam =

(i)

64.00%
(ii)

62.00%
(iii)

60.00%
(iv)

63.00%
(v)

61.00%

Question 27

27.

In a school of 400 students, 260 students are boys. The number of boys who failed the final exam is 70. The percentage of girls who failed is 78.57%. The number of girls who passed the exam =

(i)

27
(ii)

29
(iii)

30
(iv)

33
(v)

31

Question 28

28.

In a school of 900 students, 180 students are boys. The number of boys who failed the final exam is 130. The percentage of girls who failed is 63.89%. The percentage of boys who passed the exam =

(i)

27.78%
(ii)

26.78%
(iii)

29.78%
(iv)

28.78%
(v)

25.78%

Assignment Key