# NSTSE (National Science Talent Search Exam- Unified Council) Class 7: Questions 519 - 526 of 1732

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## Question 519

### Question

MCQ▾

If the arithmetic mean of 3, 5,8, 4, x and 6 is 5, then x is

### Choices

Choice (4)Response

a.

10

b.

7

c.

8

d.

4

## Question 520

### Question

MCQ▾

Out of the rational number , , , which is smaller?

### Choices

Choice (4)Response

a.

b.

c.

d.

None of the above

## Question 521

### Question

MCQ▾

Product of two positive integers and a negative integer is

### Choices

Choice (4)Response

a.

Negative

b.

Zero

c.

Positive

d.

None of the above

## Question 522

### Question

MCQ▾

Multiplying a negative integer for odd times gives a ________ result.

### Choices

Choice (4)Response

a.

Negative

b.

0

c.

Positive

d.

None of the above

## Question 523

### Question

MCQ▾

The difference between the length and breadth of a rectangle is 54 m. If the perimeter is m, then the area is

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 524

### Question

MCQ▾

Simplified value of is

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 525

### Question

MCQ▾

In a chemical reaction energy absorbed by the reactants is less than the energy released by the products, Therefore,

### Choices

Choice (4)Response

a.

Heat is consumed

b.

Heat is constant

c.

Heat is produced

d.

None of the above

## Question 526

### Question

MCQ▾

In the following figure if AB = AC then find .

### Choices

Choice (4)Response

a.

b.

c.

d.

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