# NSTSE (National Science Talent Search Exam- Unified Council) Class 10: Questions 520 - 525 of 1484

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## Question number: 520

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MCQ▾

### Question

The number of roots satisfying the equation is/are

### Choices

Choice (4) Response

a.

Unlimited

b.

1

c.

3

d.

2

## Question number: 521

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MCQ▾

### Question

The HCF and LCM of the polynomials P (x) and Q (x) are and . If P (x) = , then Q (x) =

### Choices

Choice (4) Response

a.

b.

c.

d.

Question does not provide sufficient data or is vague

## Question number: 522

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MCQ▾

### Question

The measures of the interior angles of a convex polygon are in AP. If the smallest angle is and the largest angle is , then the number of sides of the polygon is

### Choices

Choice (4) Response

a.

6

b.

10

c.

9

d.

12

## Question number: 523

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MCQ▾

### Question

A cylindrical vessel contains 24.948 liters of liquid. Cost of painting its CSA at 2 paise/sq cm is Rs. 47.52. Then its total surface area is ________.

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 524

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MCQ▾

### Question

The sum of ‘n’ terms of the series 2k, 4k, 6k, …. . is

### Choices

Choice (4) Response

a.

b.

c.

d.

Question does not provide sufficient data or is vague

## Question number: 525

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MCQ▾

### Question

If then = ________.

### Choices

Choice (4) Response

a.

b.

c.

d.

Question does not provide sufficient data or is vague

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