# Mathematics [NSTSE (National Science Talent Search Exam- Unified Council) Class 9]: Questions 501 - 507 of 989

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## Question 501

Mathematics
Edit

### Question

MCQ▾

The area of a rhombus is 96 and one of its diagonal is 12 cm. Its perimeter is

### Choices

Choice (4)Response

a.

25 cm

b.

30 cm

c.

40 cm

d.

84 cm

## Question 502

Mathematics
Edit

### Question

MCQ▾

If , then ________.

### Choices

Choice (4)Response

a.

Not a rational number

b.

A natural number

c.

A rational number

d.

An integer

## Question 503

Edit

### Question

MCQ▾

The radius of a cylinder is halved but its lateral surface area is unchanged. Then its height must be

### Choices

Choice (4)Response

a.

Halved

b.

Doubled

c.

Constant

d.

Trebled

## Question 504

Mathematics
Edit

### Question

MCQ▾

The probability of getting a number less than 5 or an even number in a single throw of a fair die is

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 505

Edit

### Question

MCQ▾

The height and radius of a cone are 24 cm and 7 cm respectively. Its curved surface area must be is

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 506

Mathematics
Edit

### Question

MCQ▾

By what rational number should be multiplied to obtain 56?

### Choices

Choice (4)Response

a.

b.

c.

d.

All of the above

## Question 507

Edit

### Question

MCQ▾

A cylindrical vessel contains 99.792 liters of liquid. Cost of painting its CSA at 4 paise/sq cm is Rs. 95.04. Then its total surface area is ________.

### Choices

Choice (4)Response

a.

b.

c.

d.