# NSTSE (National Science Talent Search Exam- Unified Council) Class 5: Questions 420 - 428 of 1420

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## Question 420

### Question

MCQ▾

What are the common factors of 36 and 72?

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 421

### Question

MCQ▾

Find the difference obtained when is subtracted from

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 422

### Question

MCQ▾

Identify an example for co-prime numbers.

### Choices

Choice (4)Response

a.

12,15

b.

18,37

c.

16,26

d.

8,10

## Question 423

### Question

MCQ▾

What is the sum of the numbers that are multiples of 6 as well as factors of 36?

### Choices

Choice (4)Response

a.

36

b.

68

c.

56

d.

72

## Question 424

### Question

MCQ▾

Find the smallest whole number that is divisible by 12 and 18.

### Choices

Choice (4)Response

a.

60

b.

72

c.

36

d.

54

## Question 425

### Question

MCQ▾

Which of these numbers has 2,11, 22 and 97 as factors?

### Choices

Choice (4)Response

a.

2321

b.

2134

c.

1122

d.

4300

## Question 426

### Question

MCQ▾

Tejal reads of a cover. She has still 70 letters to be read to complete reading the cover. How many letters are there in the covers?

### Choices

Choice (4)Response

a.

100

b.

70

c.

120

d.

90

## Question 427

### Question

MCQ▾

Anokhi has of a pizza. She ate of it. What part of the pizza is remaining?

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 428

### Question

MCQ▾

Identify the numbers which have only 1 and itself as factors.

### Choices

Choice (4)Response

a.

Prime numbers

b.

Twin prime

c.

Composite numbers

d.

Co-prime numbers

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