NSTSE (National Science Talent Search Exam- Unified Council) Class 7: Questions 38 - 46 of 1732

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Question number: 38

» Mathematics » Simple Equations

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Question

The average of four numbers is 120. The first is th of the sum of the other three. The first number is

Choices

Choice (4) Response

a.

68

b.

84

c.

57

d.

96

Question number: 39

» Mathematics » Simple Equations

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Question

The ratio between two numbers is 5: 3. If each number is increased by 5, the ratio becomes 3: 2. Find the numbers.

Choices

Choice (4) Response

a.

25,15

b.

30,15

c.

25,20

d.

30,20

Question number: 40

» Mathematics » Comparing Quantities

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Question

The ratio of the least prime number to the least composite number is

Choices

Choice (4) Response

a.

1: 3

b.

1: 4

c.

1: 2

d.

2: 3

Question number: 41

» Mathematics » Simple Equations

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Question

The ratio between two numbers is 9: 5. If each number is increased by 10, the ratio becomes 7: 4. Find the numbers.

Choices

Choice (4) Response

a.

250,120

b.

320,210

c.

305,105

d.

270,150

Question number: 42

» Mathematics » Fractions and Decimals

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Question

Example of an improper fraction is

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Choice (4) Response

a.

b.

c.

d.

Question number: 43

» Mathematics » Fractions and Decimals

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Question

Sum of 1.5,12.6,56.198 is

Choices

Choice (4) Response

a.

702.98

b.

70.298

c.

7029.8

d.

7.0298

Question number: 44

» Mathematics » Fractions and Decimals

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Question

Product of and is

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 45

» Mathematics » Fractions and Decimals

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Question

Difference of and is

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 46

» Mathematics » Comparing Quantities

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MCQ▾

Question

The length and width of a tape are 3 m and 27 cm. Write their ratio.

Choices

Choice (4) Response

a.

10: 9

b.

100: 9

c.

9: 10

d.

9: 100

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