Mathematics [NSTSE (National Science Talent Search Exam- Unified Council) Class 7]: Questions 278 - 282 of 1128

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Question number: 278

» Mathematics » Rational Numbers

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MCQ▾

Question

Which of the following alternatives is wrong? Given that

(I) Difference of two rational numbers is a rational number

(II) Subtraction is commutative on rational numbers

(III) Addition is not commutative on rational numbers

Choices

Choice (4)Response

a.

(I) only

b.

(I) and (III)

c.

(II) and (III)

d.

None of the above

Question number: 279

» Mathematics » Integers

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MCQ▾

Question

If the exponent of a negative integer is even then the result is a ________ integer.

Choices

Choice (4)Response

a.

0

b.

Positive

c.

Negative

d.

Question does not provide sufficient data or is vague

Question number: 280

» Mathematics » Exponents and Powers

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MCQ▾

Question

Simplify

Choices

Choice (4)Response

a.

2

b.

1

c.

4

d.

Question number: 281

» Mathematics » Symmetry

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MCQ▾

Question

Polygon poly1Polygon poly1: Polygon [A, B, 4] Polygon poly1Polygon poly1: Polygon [A, B, 4] Segment fSegment f: Segment [A, B] of Polygon poly1Segment gSegment g: Segment [B, C] of Polygon poly1Segment hSegment h: Segment [C, D] of Polygon poly1Segment iSegment i: Segment [D, A] of Polygon poly1

Image of a Square Having Four Equal Sides

The number of line of symmetries that the given figure has:

Choices

Choice (4)Response

a.

3

b.

4

c.

1

d.

2

Question number: 282

» Mathematics » Rational Numbers

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MCQ▾

Question

is a

Choices

Choice (4)Response

a.

Either positive or negative rational number

b.

Negative rational number

c.

Neither positive nor negative rational number

d.

Positive rational number

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