# NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 317 - 325 of 1484

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## Question number: 317

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MCQ▾

### Question

The product of and is ________.

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 318

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MCQ▾

### Question

is divisible by when ‘n’ is ________.

### Choices

Choice (4)Response

a.

An odd number

b.

A natural number

c.

An even number

d.

A prime number

## Question number: 319

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MCQ▾

### Question

In an AP, the sum of 3 numbers is 18 and their product is 162. Then the three numbers are

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 320

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MCQ▾

### Question

Ratio of volumes of two cylinders with equal heights and radius of 3 cm and 2 cm respectively is

### Choices

Choice (4)Response

a.

3: 2

b.

9: 4

c.

9: 2

d.

None of the above

## Question number: 321

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MCQ▾

### Question

The product of two consecutive numbers is 42. Find them.

### Choices

Choice (4)Response

a.

-6,7

b.

6,7

c.

21, -2

d.

6, -7

## Question number: 322

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MCQ▾

### Question

Find ‘a’ and ‘b’ in order that may be exactly divisible by .

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 323

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MCQ▾

________.

### Choices

Choice (4)Response

a.

b.

c.

1

d.

None of the above

## Question number: 324

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MCQ▾

### Question

There are four polynomials P (x), Q (x), R (x) and S (x). If the HCF of each pair is and the LCM of all four polynomial is then the product of four polynomials is

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 325

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MCQ▾

### Question

The nth term of the series is

### Choices

Choice (4)Response

a.

b.

c.

n

d.

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