# NCO- Cyber Olympiad (SOF) Class 10: Questions 176 - 182 of 461

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## Question number: 176

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MCQ▾

### Question

The radii of two spheres are in the ratio 1: 5. Find the ratio of their volumes.

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 177

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MCQ▾

### Question

The sum of the squares of two consecutive even integers is 340. Find the integers.

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 178

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MCQ▾

### Question

30 liters of a mixture contains 20 % alcohol and the rest water. If 6 liters of water be mixed in it, the percentage of alcohol in the new mixture will be

### Choices

Choice (4)Response

a.

17%

b.

c.

d.

15%

## Question number: 179

» Mental Ability » Number Games » Number Analogies

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MCQ▾

### Question

If all the numbers from 25 to 80 which are divisible by 6 are arranged in descending order, then which number will be at 6th and 2nd places?

### Choices

Choice (4)Response

a.

72,48

b.

60,42

c.

66,48

d.

48,66

## Question number: 180

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MCQ▾

The roots of are

### Choices

Choice (4)Response

a.

-1,1 and 5

b.

-1

c.

0 and -1

d.

1 and 5

## Question number: 181

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MCQ▾

### Question

The angle of elevation of the top of a tower at a distance 680 meters from the base is . The height of the tower is

### Choices

Choice (4)Response

a.

meters

b.

meters

c.

meters

d.

meters

## Question number: 182

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### Question

 x -2 1 0 3 y -7 2 -1 8

### Choices

Choice (4)Response

a.

b.

c.

d.

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