# Mathematics [NSTSE (National Science Talent Search Exam- Unified Council) Class 9]: Questions 731 - 739 of 989

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## Question number: 731

» Mathematics » Surface Areas & Volumes

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MCQ▾

### Question

The height and radius of a cone are 6 cm and 8 cm respectively. Its curved surface area must be is

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 732

» Mathematics » Polynomials

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MCQ▾

Factors of

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 733

» Mathematics » Heron's Formula

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MCQ▾

### Question

Two adjacent sides of a parallelogram are 14 cm and 11 cm. One of its diagonals is 17 cm. Then the area of parallelogram is

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 734

» Mathematics » Number Systems

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MCQ▾

### Question

Which step in the following problem is wrong?

Step – 1:

Step – 2:

Step – 3:

Step – 4:

### Choices

Choice (4)Response

a.

Step – 2

b.

Step – 4

c.

Step – 3

d.

Step – 1

## Question number: 735

» Mathematics » Heron's Formula

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MCQ▾

### Question

The area of a triangle whose sides are 26,28 and 30 cm.

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 736

» Mathematics » Number Systems

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MCQ▾

### Question

What number should be added to so as to get ?

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 737

» Mathematics » Polynomials

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MCQ▾

### Question

If and then ________.

### Choices

Choice (4)Response

a.

513

b.

378

c.

162

d.

216

## Question number: 738

» Mathematics » Number Systems

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MCQ▾

### Question

The greatest among the following is

I. II. III. IV.

### Choices

Choice (4)Response

a.

IV

b.

I

c.

III

d.

II

## Question number: 739

» Mathematics » Statistics

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MCQ▾

### Question

The mean of 5 observations is 60. If one observation, namely 6 is added, the new mean is

### Choices

Choice (4)Response

a.

55

b.

71

c.

51

d.

54

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