Mental Ability (NCO- Cyber Olympiad (SOF) Class 8): Questions 1 - 8 of 241

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Question number: 1

» Mental Ability » Basic Arithmetic

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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

» Mental Ability » Basic Geometry

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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

» Mental Ability » Basic Geometry

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MCQ▾

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

» Mental Ability » Basic Geometry

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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

» Mental Ability » Basic Geometry

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MCQ▾

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

» Mental Ability » Basic Statistics

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MCQ▾

Question

The value of is ________

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Choice (4) Response

a.

b.

c.

d.

Question number: 7

» Mental Ability » Basic Geometry

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MCQ▾

Question

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

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 8

» Mental Ability » Basic Geometry

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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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