Mental Ability-Basic Arithmetic (NCO- Cyber Olympiad Class 7): Questions 95 - 101 of 122

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Question number: 95

» Mental Ability » Basic Arithmetic

MCQ▾

Question

Human blood RBC’s are expressed in terms of number of red blood cells per cubic mm. Express 5.5 million blood cells per cubic mm terms of scientific notation.

Choices

Choice (4) Response

a.

55 Equation

b.

5.5 Equation

c.

5.5 Equation

d.

0.55 Equation

Question number: 96

» Mental Ability » Basic Arithmetic

MCQ▾

Question

A train 500 meters long is running at a speed of 48 Equation . If it crosses a tunnel in 1 minute, then the length of the tunnel (in meters) is.

Choices

Choice (4) Response

a.

130

b.

500

c.

300

d.

100

Question number: 97

» Mental Ability » Basic Arithmetic

MCQ▾

Question

Find the value of Equation from the equation Equation

Choices

Choice (4) Response

a.

62

b.

35

c.

45

d.

33

Question number: 98

» Mental Ability » Basic Arithmetic

MCQ▾

Question

A man sold a radio for 1220 and gained 20%, then the radio was bought for?

Choices

Choice (4) Response

a.

1016.66

b.

1200

c.

980

d.

1790

Question number: 99

» Mental Ability » Basic Arithmetic

MCQ▾

Question

Two cubes have volumes in the ratio 1: 125. Then the ratio of their sides is

Choices

Choice (4) Response

a.

1: 18

b.

1: 2

c.

1: 5

d.

1: 8

Question number: 100

» Mental Ability » Basic Arithmetic

MCQ▾

Question

The present ages of three persons in proportions 2: 3: 4. Five years ago, the sum of their ages was 48. Find their present ages (in years).

Choices

Choice (4) Response

a.

16, 28, 26

b.

8, 20, 28

c.

14, 21, 28

d.

None of the above

Question number: 101

» Mental Ability » Basic Arithmetic

MCQ▾

Question

Two poles 30 m and 15 m high stand upright in a ground. If their feet are 36 m apart, find the distance between tops.

Choices

Choice (4) Response

a.

30 m

b.

39 m

c.

35 m

d.

25 m

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