# NSTSE (National Science Talent Search Exam- Unified Council) Class 7: Questions 685 - 693 of 1732

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## Question 685

MCQ▾

Simplify:

### Choices

Choice (4)Response

a.

b.

c.

8

d.

## Question 686

MCQ▾

The value of is

### Choices

Choice (4)Response

a.

240

b.

400

c.

520

d.

640

## Question 687

### Question

MCQ▾

In the adjoining figure, it is given that . and then ________.

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 688

### Question

MCQ▾

The product of and is

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 689

### Question

MCQ▾

If the angles of a triangle are in the ratio 1: 2: 3 then the triangle is

### Choices

Choice (4)Response

a.

Right angled

b.

Right angled isosceles

c.

Acute angled

d.

Obtuse angled

## Question 690

### Question

MCQ▾

If then the value of = ________

### Choices

Choice (4)Response

a.

Cannot be determined

b.

1

c.

0

d.

Question does not provide sufficient data or is vague

## Question 691

### Question

MCQ▾

By what number should we multiply so that the product may be equal to 27?

### Choices

Choice (4)Response

a.

b.

c.

d.

Question does not provide sufficient data or is vague

## Question 692

### Question

MCQ▾

The sum of two rational numbers is -4. If one of the numbers is , then the other number is

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 693

### Question

MCQ▾

A cloth merchant says that due to slump in the market, he sells the cloth at 5 % loss, but he uses a false meter scale and actually gain 10 % . Find the actual length of the scale.

### Choices

Choice (4)Response

a.

90 cm

b.

86.36 cm

c.

80 cm

d.

85.60 cm

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