Mathematics [NSTSE (National Science Talent Search Exam- Unified Council) Class 8]: Questions 9 - 15 of 1201

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Question number: 9

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Question

MCQ▾

When 70 % of a number is added to 90 the result is the number again. The number is

Choices

Choice (4)Response

a.

360

b.

300

c.

420

d.

280

Question number: 10

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Question

MCQ▾

The following figure shows a polygon with all its exterior angles.

Image of a Polygon Having Five Sides

The value of x is:

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 11

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Question

MCQ▾

In the diagram, ABCD is a rhombus.

Image of a Rhombus ABCD with Two Unknown Angles

The value of is

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 12

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Question

MCQ▾

If the lengths of two diagonal of a rhombus are 14 cm and 48 cm, then the length of each side of the rhombus are:

Choices

Choice (4)Response

a.

34 cm

b.

25 cm

c.

62 cm

d.

21 cm

Question number: 13

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Question

MCQ▾

A fraction such that if the numerator is multiplied by 3 and the denominator is reduced by 3, we get , but if the numerator is increased by 8 and the denominator is doubled, we get . Then the fraction is:

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 14

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Question

MCQ▾

The area of the trapezium shown is:

Image of a Trapezium ABCD with Given Height and Length of Parallel Sides

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 15

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Question

MCQ▾

In a ABC, M and N are midpoints of AB and AC, MN is produced to O such that MN = MO, then NOCB is:

Choices

Choice (4)Response

a.

Square

b.

Parallelogram

c.

Rectangle

d.

Rhombus