# NCO- Cyber Olympiad (SOF) Class 8: Questions 1 - 9 of 510

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## Question number: 1

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MCQ▾

### Question

If 12 workers can color 24 houses in 8 days, how many houses can 6 workers color in 4 days?

### Choices

Choice (4)Response

a.

3

b.

24

c.

6

d.

12

## Question number: 2

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MCQ▾

### Question

The length of the minute hand on a wall clock is 21 cm. The area swept by the minute hand in 30 minutes is

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 3

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### Question

The largest possible square is inscribed in a circle of unit radius. The area of the square in square units is

### Choices

Choice (4)Response

a.

b.

c.

d.

2

## Question number: 4

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MCQ▾

### Question

If the radius of a cone is increased by 50%, its volume is increased by

### Choices

Choice (4)Response

a.

125%

b.

50%

c.

75%

d.

150%

## Question number: 5

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### Question

The length of a rope by which a horse must be tethered to graze over an area of 1386 is

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 6

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### Question

The value of is ________

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Choice (4)Response

a.

b.

c.

d.

## Question number: 7

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### Question

The measure of an angle which is five times its complement is

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 8

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### Question

If ‘HELLO’ is coded as 10.4, how will you code ‘CLASS’?

### Choices

Choice (4)Response

a.

11.8

b.

15.2

c.

9

d.

10.8

## Question number: 9

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MCQ▾

### Question

If the area of a triangle with base x is equal to area of a square of side x, the altitude of the triangle is

### Choices

Choice (4)Response

a.

b.

c.

d.

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