# NSTSE (National Science Talent Search Exam- Unified Council) Class 4: Questions 709 - 717 of 1971

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## Question 709

### Question

MCQ▾

What is the sum of the least common multiple and highest common factor of the numbers 12 and 18?

### Choices

Choice (4)Response

a.

38

b.

44

c.

42

d.

40

## Question 710

MCQ▾

________

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 711

MCQ▾

________

### Choices

Choice (4)Response

a.

1

b.

0

c.

92

d.

29

## Question 712

### Question

MCQ▾

Number 1 has only one factor. It is neither prime nor composite. It is called ________ number.

### Choices

Choice (4)Response

a.

Prime

b.

Unique

c.

Composite

d.

Twin prime

## Question 713

### Question

MCQ▾

Factors of 57: 3 and ________.

### Choices

Choice (4)Response

a.

23

b.

57

c.

19

d.

34

## Question 714

### Question

MCQ▾

If we start subtracting 6 from 26 stepwise as shown, we will be able to subtract 4 times.

(The above process stops here as 5 is smaller than 6)

If we start subtracting 8 from 198 in a similar manner, how many times will we be able to subtract?

### Choices

Choice (4)Response

a.

43

b.

45

c.

24

d.

22

## Question 715

MCQ▾

The value of is:

### Choices

Choice (4)Response

a.

37

b.

42

c.

32

d.

35

## Question 716

### Question

MCQ▾

Mixed fraction for is:

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 717

### Question

MCQ▾

Students have 420 books. If each student has equal number of books, how many books did each student has?

### Choices

Choice (4)Response

a.

40

b.

35

c.

30

d.

45

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