Mental Ability-Basic Arithmetic (NCO- Cyber Olympiad Class 6): Questions 91 - 97 of 268

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Question number: 91

» Mental Ability » Basic Arithmetic

MCQ▾

Question

The product of two irrational numbers________.

Choices

Choice (4) Response

a.

Is always rational

b.

Is always irrational

c.

May be rational in some cases and irrational in some other cases

d.

An integer

Question number: 92

» Mental Ability » Basic Arithmetic

MCQ▾

Question

Equation when expressed as a percentage of Equation , is ________.

Choices

Choice (4) Response

a.

85%

b.

87.31%

c.

75%

d.

25%

Question number: 93

» Mental Ability » Basic Arithmetic

MCQ▾

Question

By how much must 3 be increased so that it bears same ratio to 10 as 18 to 36?

Choices

Choice (4) Response

a.

1

b.

4

c.

2

d.

3

Question number: 94

» Mental Ability » Basic Arithmetic

MCQ▾

Question

Equation

Choices

Choice (4) Response

a.

2.7

b.

270

c.

0.27

d.

27

Question number: 95

» Mental Ability » Basic Arithmetic

MCQ▾

Question

The subtraction of two irrational numbers________.

Choices

Choice (4) Response

a.

May be rational in some cases and irrational in some other cases

b.

An integer

c.

Is always irrational

d.

Is always rational

Question number: 96

» Mental Ability » Basic Arithmetic

MCQ▾

Question

By how much must 27 be decreased so that it bears same ratio to 49 as 12 to 28?

Choices

Choice (4) Response

a.

3

b.

2

c.

6

d.

7

Question number: 97

» Mental Ability » Basic Arithmetic

MCQ▾

Question

If Equation stands for ‘division’, Equation stands for ‘equal to’, Equation stands for ‘addition’, Equation stands for ‘greater than’, Equation stands for ‘less than’, Equation stands for ‘multiplication’ and Equation stands for ‘subtraction’, then which of the following alternative is correct?

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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