# NSTSE (National Science Talent Search Exam- Unified Council) Class 7: Questions 642 - 649 of 1732

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## Question 642

### Question

MCQ▾

By selling 50 mangoes for ₹ 45, a man loses 20 % . How many should he sell for ₹ 27 so as to gain 20 % in the transaction?

### Choices

Choice (4)Response

a.

22

b.

20

c.

24

d.

30

## Question 643

MCQ▾

= ________.

### Choices

Choice (4)Response

a.

b.

c.

2.73

d.

## Question 644

### Question

MCQ▾

What fractions of the children in the following group are girls?

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 645

### Question

MCQ▾

In the figure given below, find .

### Choices

Choice (4)Response

a.

b.

c.

d.

All of the above

## Question 646

### Question

MCQ▾

Which of the following rational numbers is in the standard form?

### Choices

Choice (4)Response

a.

b.

c.

d.

None of the above

## Question 647

MCQ▾

is a ________.

### Choices

Choice (4)Response

a.

Either positive or negative rational number

b.

Positive rational number

c.

Neither positive nor negative rational number

d.

Negative rational number

## Question 648

### Question

MCQ▾

In the adjoining figure, it is given that , t is a transversal. Then the value of x is

### Choices

Choice (4)Response

a.

b.

c.

d.

None of the above

## Question 649

### Question

MCQ▾

Negative of a negative integer is

### Choices

Choice (4)Response

a.

Zero

b.

Positive

c.

Negative

d.

None of the above

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