# NCO- Cyber Olympiad (SOF) Class 10: Questions 68 - 72 of 461

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## Question number: 68

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MCQ▾

### Question

The top of a ladder is leaning against a building at a point 8 feet above the ground; the bottom of the ladder is 6 feet from the building. What is the length of the ladder?

### Choices

Choice (4)Response

a.

10 ft

b.

36 ft

c.

64 ft

d.

14 ft

## Question number: 69

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MCQ▾

### Question

A metallic sheet is of rectangular shape with dimensions . From each one of its corners, a square of 3 cm is cut off. An open box is made of the remaining sheet. Find the volume of the box.

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 70

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MCQ▾

### Question

A train for Goa leaves every twenty minutes from a railway station. An enquiry clerk told a passenger that the train had already left five minutes ago and the next train will leave at 11: 35 a. m. At what time did the enquiry clerk give this information to the passenger?

### Choices

Choice (4)Response

a.

10: 20 a. m.

b.

11: 15 a. m.

c.

11: 50 a. m.

d.

11: 20 a. m.

## Question number: 71

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MCQ▾

### Question

A number when divided by 81 gives a remainder 32. By dividing the same number by 27, what would be the remainder?

### Choices

Choice (4)Response

a.

3

b.

6

c.

9

d.

5

## Question number: 72

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MCQ▾

### Question

The radii of two spheres are in the ratio 2: 3. Find the ratio of their surface areas.

### Choices

Choice (4)Response

a.

b.

c.

d.

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