# Discrete Mathematics-Number System [NTA-NET (Based on NTA-UGC) Computer Science (Paper-II)]: Questions 1 - 5 of 19

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## Question number: 1

» Discrete Mathematics » Number System

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Appeared in Year: 2015

MCQ▾

### Question

Which of the following is/are not true?

(1) The set of negative integers is countable.

(2) The set of integers that are multiples of 7 is countable.

(3) The set of even integers is countable.

(4) The set of real numbers between 0 and 1/2 is countable. (December)

### Choices

Choice (4)Response

a.

(1) and (3)

b.

(2) and (4)

c.

(4) only

d.

(2) only

## Question number: 2

» Discrete Mathematics » Number System

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Appeared in Year: 2016

MCQ▾

### Question

The IEEE-754 double-precision format to represent floating point numbers, has a length of ………. bits.

### Choices

Choice (4)Response

a.

16

b.

64

c.

48

d.

32

## Question number: 3

» Discrete Mathematics » Number System

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Appeared in Year: 2010

MCQ▾

### Question

The number of integers between 1 and 250 that are divisible by 2,5 and 7 is (Paper II)

### Choices

Choice (4)Response

a.

2

b.

5

c.

8

d.

3

## Question number: 4

» Discrete Mathematics » Number System

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Appeared in Year: 2010

MCQ▾

### Question

Consider the following left associative operators in decreasing order of precedence:

– subtraction (highest precedence)

* multiplication

\$ exponentiation (lowest precedence)

What is the result of the following expression?

(June Paper II)

### Choices

Choice (4)Response

a.

– 61

b.

64

c.

512

d.

4096

## Question number: 5

» Discrete Mathematics » Number System

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Appeared in Year: 2011

MCQ▾

### Question

Any integer composed of 3n identical digits divisible by (June Paper 2)

### Choices

Choice (4)Response

a.

2n

b.

3n

c.

5n

d.

7n

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