# NSTSE (National Science Talent Search Exam- Unified Council) Class 9: Questions 537 - 543 of 2000

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## Question number: 537

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MCQ▾

### Question

The mean of 774,776,778,780 and 782 is

### Choices

Choice (4) Response

a.

774

b.

782

c.

776

d.

778

## Question number: 538

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MCQ▾

### Question

A card is drawn from a packet of 70 cards numbered 1 to 70. The probability of drawing a number which is a square is

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 539

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MCQ▾

### Question

Which of the following alternatives is wrong? Given that

(I) Difference of two rational numbers is a rational number

(II) Subtraction is commutative on rational numbers

(III) Addition is not commutative on rational numbers

### Choices

Choice (4) Response

a.

(I) and (III)

b.

(I) only

c.

(II) and (III)

d.

Question does not provide sufficient data or is vague

## Question number: 540

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MCQ▾

### Question

In a if , , then perimeter of the triangle is

### Choices

Choice (4) Response

a.

73 cm

b.

54 cm

c.

61 cm

d.

None of the above

## Question number: 541

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MCQ▾

### Question

If a coin is tossed twice, the probability of getting at least one tail is

### Choices

Choice (4) Response

a.

b.

c.

d.

Question does not provide sufficient data or is vague

## Question number: 542

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MCQ▾

### Question

If is divided by 17 then the remainder is

### Choices

Choice (4) Response

a.

-2

b.

-1

c.

0

d.

1

## Question number: 543

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MCQ▾

### Question

The area of a triangle whose sides are 12,13 and 15 cm.

### Choices

Choice (4) Response

a.

b.

c.

d.

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