NCO- Cyber Olympiad Class 6: Questions 238 - 242 of 722

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Question number: 238

» 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: 239

» 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: 240

» Mental Ability » Basic Geometry

MCQ▾

Question

In parallelogram ABCD, E and F are the midpoints of AB and CD respectively. Which of the following is not true?

A parallelogram has two middle points

A Parallelogram Has Two Middle Points

Find the wrong sentence about parallelogram and intersecting lines

Choices

Choice (4) Response

a.

ADFCBE

b.

ED is not parallel to BF

c.

AF trisects BD

d.

CE trisects BD

Question number: 241

» Mental Ability » Basic Geometry

MCQ▾

Question

ABCD,EFD is equal to,

Geometric image made by two intersecting lines

Geometric Image Made by Two Intersecting Lines

Find the required angle by using given values

Choices

Choice (4) Response

a.

1450

b.

350

c.

450

d.

550

Question number: 242

» Mental Ability » Basic Arithmetic

MCQ▾

Question

If + stands for ‘division’, stands for ‘equal to’, × stands for ‘addition’, ÷ stands for ‘greater than’, = stands for ‘less than’, > stands for ‘multiplication’ and < stands for ‘subtraction’, then which of the following alternative is correct?

Choices

Choice (4) Response

a.

11×5<17<4×2

b.

11>5×17>4>2

c.

11<5×1÷7>4×2

d.

11÷5×1=7+4>2

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