# Mathematics [NSTSE (National Science Talent Search Exam- Unified Council) Class 9]: Questions 824 - 831 of 989

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## Question 824

Mathematics
Edit

### Question

MCQ▾

The product of rational and irrational number is always

### Choices

Choice (4)Response

a.

Rational

b.

Irrational

c.

Question does not provide sufficient data or is vague

d.

None of the above

## Question 825

Edit

### Question

MCQ▾

The equation of the line parallel to y-axis is ________.

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 826

Mathematics
Edit

### Question

MCQ▾

The triangle formed and is

### Choices

Choice (4)Response

a.

An isosceles triangle

b.

A right angled isosceles triangle

c.

No triangle is formed

d.

A right angled triangle

## Question 827

Mathematics
Edit

### Question

MCQ▾

Two numbers are chosen from 4 to 9. The probability for the two numbers to be consecutive is

### Choices

Choice (4)Response

a.

b.

c.

d.

None of the above

## Question 828

Mathematics
Edit

### Question

MCQ▾

Express as rational number.

### Choices

Choice (4)Response

a.

b.

c.

d.

All of the above

## Question 829

Edit

### Question

MCQ▾

The ratio of radii of two cylinders is and heights are in the ratio . The ratio of their volumes is

### Choices

Choice (4)Response

a.

4: 3

b.

3: 2

c.

1: 2

d.

1: 1

## Question 830

Edit

### Question

MCQ▾

The largest sphere is cut off from a cube of side 10 cm. The volume of the sphere will be:

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 831

Mathematics
Edit

### Question

MCQ▾

If the two sides of a right angled triangle are equal and the square of the hypotenuse is 338 cm then the length of each side is

### Choices

Choice (4)Response

a.

26 cm

b.

13 cm

c.

18 cm

d.

cm