# Mathematics [NSTSE (National Science Talent Search Exam- Unified Council) Class 9]: Questions 380 - 386 of 989

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## Question 380

Mathematics
Edit

### Question

MCQ▾

Two adjacent sides of a parallelogram are 12 cm and 9 cm. One of its diagonals is 15 cm. Then the area of parallelogram is

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 381

Mathematics
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### Question

MCQ▾

If then ________.

### Choices

Choice (4)Response

a.

19

b.

15

c.

21

d.

All of the above

## Question 382

Mathematics
Edit

### Question

MCQ▾

Two sides of an isosceles triangle are 4 cm and 8 cm. Then the length of third side is

### Choices

Choice (4)Response

a.

4 cm

b.

8 cm

c.

12 cm

d.

All of the above

## Question 383

Mathematics
Edit

### Question

MCQ▾

If both ‘a’ and ‘b’ are rational numbers then ‘a’ and ‘b’ from the following are

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 384

Mathematics
Edit

### Question

MCQ▾

If x: Every fraction is a rational number and y: Every rational number is a fraction, then which of the following is correct?

### Choices

Choice (4)Response

a.

x is True and y is False

b.

x is False and y is True

c.

Question does not provide sufficient data or is vague

d.

None of the above

## Question 385

Mathematics
Edit

### Question

MCQ▾

A card is drawn from a packet of 120 cards numbered 1 to 120. The probability of drawing a number which is a square is

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 386

Mathematics
Edit

### Question

MCQ▾

Which of the following is not a rational number?

### Choices

Choice (4)Response

a.

b.

c.

d.