# Mathematics [NSTSE (National Science Talent Search Exam- Unified Council) Class 9]: Questions 410 - 416 of 989

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## Question number: 410

» Mathematics » Constructions

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MCQ▾

### Question

The number of independent measurements required to construct a triangle is

### Choices

Choice (4)Response

a.

5

b.

3

c.

2

d.

4

## Question number: 411

» Mathematics » Constructions

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MCQ▾

### Question

If the two sides of a right angled triangle are equal and the square of the hypotenuse is 162 cm then the length of each side is

### Choices

Choice (4)Response

a.

cm

b.

18 cm

c.

3 cm

d.

9 cm

## Question number: 412

» Mathematics » Surface Areas & Volumes

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MCQ▾

### Question

The diameter of a copper sphere is 36 cm. It is beaten and drawn into a wire of diameter 0.6 cm. The length of wire is ________.

### Choices

Choice (4)Response

a.

21600 cm

b.

43200 cm

c.

32400 cm

d.

86400 cm

## Question number: 413

» Mathematics » Polynomials

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MCQ▾

### Question

The product of and is:

### Choices

Choice (4)Response

a.

b.

c.

d.

None of the above

## Question number: 414

» Mathematics » Surface Areas & Volumes

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MCQ▾

### Question

A hollow spherical ball whose inner radius is 2 cm is full of water. Half of the water is transferred to a conical cup and it completely filled the cup. If the height of the cup is 4 cm, then the radius of the base of cone, in cm is

### Choices

Choice (4)Response

a.

4

b.

16

c.

2

d.

## Question number: 415

» Mathematics » Statistics

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MCQ▾

### Question

The mean of 7 observations is 58. If one observation, namely 4 is deleted, the new mean is

### Choices

Choice (4)Response

a.

61

b.

62

c.

65

d.

67

## Question number: 416

» Mathematics » Statistics

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MCQ▾

### Question

The runs scored by Sachin in 7 test matches are 133,140,138,150,156,148 and 143 respectively. Find his mean.

### Choices

Choice (4)Response

a.

144

b.

133

c.

156

d.

148

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