NCO- Cyber Olympiad (SOF) Class 10: Questions 22 - 25 of 461

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Question 22

Question

MCQ▾

In the given question a square sheet of paper has been folded and punched as shown. How would the paper look like when unfolded?

Three Folded and Punched Positions of a Square Sheet

Choices

Choice (4)Response

a.

Unfolded Figure of Given Question Figure: Choice A

b.

Unfolded Figure of Given Question Figure: Choice B

c.

Unfolded Figure of Given Question Figure: Choice C

d.

Unfolded Figure of Given Question Figure: Choice D

Question 23

Question

MCQ▾

Find the mean marks of students from the following cumulative frequency table:

Representing the Table of Obtained Marks by Some Number of Students
MarksNumber of Students
0 and above

10 and above

20 and above

30 and above

40 and above

50 and above

60 and above

70 and above

80 and above

90 and above

100 and above

60

58

52

46

36

32

28

22

16

6

0

Choices

Choice (4)Response

a.

55

b.

54.33

c.

51.2

d.

56.89

Question 24

Question

MCQ▾

20 liters of a mixture contains 10 % water and the rest orange juice. If 3 liters of orange juice be mixed in it, the percentage of water in the new mixture will be

Choices

Choice (4)Response

a.

20 %

b.

%

c.

d.

Question 25

Question

MCQ▾

Calculate the area of the shaded portion. The quadrants shown in the figure are each of radius 14 cm. Take .

A Shaded Portion Covered by Four Quadrants

Choices

Choice (4)Response

a.

b.

c.

d.