# 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?

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 23

### Question

MCQ▾

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

 Marks Number of Students 0 and above10 and above20 and above30 and above40 and above50 and above60 and above70 and above80 and above90 and above100 and above 60585246363228221660

### 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 .

### Choices

Choice (4)Response

a.

b.

c.

d.