# NSTSE (National Science Talent Search Exam- Unified Council) Class 7: Questions 721 - 728 of 1732

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## Question number: 721

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MCQ▾

### Question

If the two sides of a right angled triangle are equal and the square of the hypotenuse is 50 cm then the length of each side is

### Choices

Choice (4) Response

a.

cm

b.

5 cm

c.

12.5 cm

d.

8 cm

## Question number: 722

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MCQ▾

### Question

In , D is midpoint of BC and G is the Centroid of the triangle. If GD = 3 cm, then the length of AD is

### Choices

Choice (4) Response

a.

6 cm

b.

9 cm

c.

3 cm

d.

None of the above

## Question number: 723

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MCQ▾

### Question

A number P exceeds Q by 40%. By what percent is Q short of P?

### Choices

Choice (4) Response

a.

26.5%

b.

32.8%

c.

30%

d.

28.6%

## Question number: 724

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MCQ▾

________.

### Choices

Choice (4) Response

a.

b.

c.

d.

All of the above

## Question number: 725

Edit
MCQ▾

The value of is

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 726

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MCQ▾

### Question

Why sand is used as a fire extinguisher to prevent small fires?

### Choices

Choice (4) Response

a.

Because sand is cheap.

b.

Because sand cover up all oxygen from the fire.

c.

Because sand is easily available

d.

All a. , b. and c. are correct

## Question number: 727

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MCQ▾

### Question

If then the value of is

### Choices

Choice (4) Response

a.

0.27

b.

4.41

c.

2.78

d.

5.73

## Question number: 728

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MCQ▾

### Question

Which of the following alphabets has only horizontal line of symmetry?

### Choices

Choice (4) Response

a.

A

b.

M

c.

D

d.

Y

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