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

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Question number: 176

» Mental Ability » Basic Geometry

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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

» Mental Ability » Basic Algebra

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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

» Mental Ability » Basic Arithmetic

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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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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

» Mental Ability » Basic Algebra

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Question

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

» Mental Ability » Basic Geometry

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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

» Mental Ability » Basic Algebra

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Question

Table of two variables x and y having different values

Representing the value of two variables x and y having different values

x

-2

1

0

3

y

-7

2

-1

8

Choices

Choice (4) Response

a.

b.

c.

d.