# NSTSE (National Science Talent Search Exam- Unified Council) Class 5: Questions 402 - 409 of 1420

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## Question 402

### Question

MCQ▾

Which mixed number is equal to ?

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 403

### Question

MCQ▾

How many prime numbers are there from 1 to 50?

### Choices

Choice (4)Response

a.

15

b.

20

c.

17

d.

10

## Question 404

### Question

MCQ▾

The figure given shows 5 numbers. (Model Test Paper)

Which of the 5 numbers are the prime factors of 130?

### Choices

Choice (4)Response

a.

3 and 10

b.

2 and 3

c.

2 and 13

d.

10 and 13

## Question 405

### Question

MCQ▾

Identify an example for twin primes.

### Choices

Choice (4)Response

a.

11,13

b.

21,25

c.

d.

5,9

## Question 406

### Question

MCQ▾

Which of the following numbers which have no common factor except 1?

### Choices

Choice (4)Response

a.

Co-primes

b.

Composite numbers

c.

Twin primes

d.

Question does not provide sufficient data or is vague

## Question 407

### Question

MCQ▾

How many prime numbers are there from 1 to 100?

### Choices

Choice (4)Response

a.

15

b.

25

c.

27

d.

20

## Question 408

### Question

MCQ▾

Study the numbers given in the box.

Identify the number that is not a divisor of the given numbers.

### Choices

Choice (4)Response

a.

13

b.

39

c.

14

d.

26

## Question 409

### Question

MCQ▾

Observe the given figures.

What fraction does the shaded part in the figure represent?

### Choices

Choice (4)Response

a.

b.

c.

d.

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