C Programming Questions and Answers – Arithmetic Operators

C Programming Questions and Answers – Arithmetic Operators

1.What is the output of this C code?

#include <stdio.h>

int main()

{

int i = -3;

int k = i % 2;

printf(“%d\n”, k);

}

a) Compile time error

b) -1

c) 1

d) Implementation defined

2.What is the output of this C code?

#include <stdio.h>

int main()

{

int i = 3;

int l = i / -2;

int k = i % -2;

printf(“%d %d\n”, l, k);

return 0;

}

a) Compile time error

b) -1 1

c) 1 -1

d) Implementation defined

3.What is the output of this C code?

#include <stdio.h>

int main()

{

int i = 5;

i = i / 3;

printf(“%d\n”, i);

return 0;

}

a) Implementation defined

b) 1

c) 3

d) Compile time error

4.What is the output of this C code?

#include <stdio.h>

int main()

{

int i = -5;

i = i / 3;

printf(“%d\n”, i);

return 0;

}

a) Implementation defined

b) -1

c) -3

d) Compile time error

5.What is the value of x in this C code?

#include <stdio.h>

void main()

{

int x = 5 * 9 / 3 + 9;

}

a) 3.75

b) Depends on compiler

c) 24

d) 3

6.What is the output of this C code?

#include <stdio.h>

void main()

{

int x = 5.3 % 2;

printf(“Value of x is %d”, x);

}

a) Value of x is 2.3

b) Value of x is 1

c) Value of x is 0.3

d) Compile time error

7.What is the output of this C code?

#include <stdio.h>

void main()

{

int y = 3;

int x = 5 % 2 * 3 / 2;

printf(“Value of x is %d”, x);

}

a) Value of x is 1

b) Value of x is 2

c) Value of x is 3

d) Compile time error

8.What is the output of this C code?

#include <stdio.h>

void main()

{

int a = 3;

int b = ++a + a++ + –a;

printf(“Value of b is %d”, b);

}

a) Value of x is 12

b) Value of x is 13

c) Value of x is 10

d) Undefined behaviour

9.The precedence of arithmetic operators is (from highest to lowest)

a) %, *, /, +, –

b) %, +, /, *, –

c) +, -, %, *, /

d) %, +, -, *, /

10.Which of the following is not an arithmetic operation?

a) a *= 10;

b) a /= 10;

c) a != 10;

d) a %= 10;

11.Which of the following data type will throw an error on modulus operation(%)?

a) char

b) short

c) int

d) float

12.Which among the following are the fundamental arithmetic operators, ie, performing the desired operation can be done using that operator only?

a) +, –

b) +, -, %

c) +, -, *, /

d) +, -, *, /, %

13.What is the output of this C code?

#include <stdio.h>

int main()

{

int a = 10;

double b = 5.6;

int c;

c = a + b;

printf(“%d”, c);

}

a) 15

b) 16

c) 15.6

d) 10

14.What is the output of this C code?

#include <stdio.h>

int main()

{

int a = 10, b = 5, c = 5;

int d;

d = a == (b + c);

printf(“%d”, d);

}

a) Syntax error

b) 1

c) 10

d) 5