NSTSE (National Science Talent Search Exam- Unified Council) Class 7: Questions 29 - 37 of 1732

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Question number: 29

» Mathematics » Comparing Quantities

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Question

The ratio of the heights of A and B is 5: 7. If B is 2.1 m tall, then the height of A is

Choices

Choice (4) Response

a.

1.5 m

b.

0.3 m

c.

1.8 m

d.

2.8 m

Question number: 30

» Mathematics » Comparing Quantities

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Question

Are they in proportion 8: 2 and 4: 16?

Choices

Choice (4) Response

a.

No

b.

Yes

c.

Sometimes

d.

None of the above

Question number: 31

» Mathematics » Comparing Quantities

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Question

Ratio symbol is ________ and is read as ________.

Choices

Choice (4) Response

a.

=, equal to

b.

: , is to

c.

: : , equal to

d.

None of the above

Question number: 32

» Mathematics » Fractions and Decimals

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Question

is

Choices

Choice (4) Response

a.

75.42

b.

0.7542

c.

0.07542

d.

754.2

Question number: 33

» Mathematics » Comparing Quantities

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Question

For 20: 10: : 10: 5, the mean proportion is

Choices

Choice (4) Response

a.

10

b.

100

c.

5

d.

20

Question number: 34

» Mathematics » Comparing Quantities

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Question

When a number is reduced by 14, it becomes 30 % of itself. Find the number.

Choices

Choice (4) Response

a.

70

b.

20

c.

30

d.

60

Question number: 35

» Mathematics » Simple Equations

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Question

of a cloth is white, of a cloth is red and remaining 6 meters is painted blue. Find the length of cloth.

Choices

Choice (4) Response

a.

65 m

b.

80 m

c.

70 m

d.

90 m

Question number: 36

» Mathematics » Fractions and Decimals

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Question

Difference of 99.99 and 100 is

Choices

Choice (4) Response

a.

1.10

b.

0.11

c.

0.1

d.

0.01

Question number: 37

» Mathematics » Simple Equations

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Question

The present age of A is twice that of B. 10 years from now, age of A will be times of B. Find the present ages of A and B respectively.

Choices

Choice (4) Response

a.

20,10

b.

10,20

c.

20,30

d.

30,20

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