# NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 478 - 484 of 1484

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## Question number: 478

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MCQ▾

### Question

If P = and Q = then ________.

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 479

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MCQ▾

### Question

A piece of metal pipe is 77 cm long with inside diameter of the cross section as 16 cm. If the outer diameter is 18 cm and the metal weighs the weight of pipe is ________.

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 480

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MCQ▾

### Question

The AM between and is

### Choices

Choice (4) Response

a.

b.

c.

d.

None of the above

## Question number: 481

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MCQ▾

### Question

If , , are in AP, then x must be equal to

### Choices

Choice (4) Response

a.

3

b.

c.

1

d.

8

## Question number: 482

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MCQ▾

### Question

The values of ‘k’ for which the equation will have real and equal roots are

### Choices

Choice (4) Response

a.

-12 and 8

b.

12 and -8

c.

-5 and 15

d.

4 and -24

## Question number: 483

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MCQ▾

### Question

Let and be the arithmetic progressions such that , and . Find the sum of the first two hundred terms of the progressions , ………….

### Choices

Choice (4) Response

a.

b.

200

c.

d.

## Question number: 484

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MCQ▾

### Question

The point of intersection of X and Y axes is called

### Choices

Choice (4) Response

a.

Common point

b.

Origin

c.

Null point

d.

Question does not provide sufficient data or is vague

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