Multiple Choice Questions and Answers for Arithmetic Operators in C Language

Here is a listing of C test questions on “Arithmetic Operators” along with answers, explanations and/or solutions:

1. What is the output of this C code?

1.     #include 

2.     int main()

3.     {

4.         int i = -3;

5.         int k = i % 2;

6.         printf("%d\n", k);

7.     }

a) Compile time error
b) -1
c) 1
d) Implementation defined

Answer:b

2. What is the output of this C code?

1.     #include 

2.     int main()

3.     {

4.         int i = 3;

5.         int l = i / -2;

6.         int k = i % -2;

7.         printf("%d %d\n", l, k);

8.         return 0;

9.     }

a) Compile time error
b) -1 1
c) 1 -1
d) Implementation defined

Answer:b

3. What is the output of this C code?

1.     #include 

2.     int main()

3.     {

4.         int i = 5;

5.         i = i / 3;

6.         printf("%d\n", i);

7.         return 0;

8.     }

a) Implementation defined
b) 1
c) 3
d) Compile time error

Answer:b

4. What is the output of this C code?

1.    #include 

2.     int main()

3.     {

4.         int i = -5;

5.         i = i / 3;

6.         printf("%d\n", i);

7.         return 0;

8.     }

a) Implementation defined
b) -1
c) -3
d) Compile time error

Answer:b

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

1.     #include 

2.     void main()

3.     {

4.         int x = 5 * 9 / 3 + 9;

5.     }

a) 3.75
b) Depends on compiler
c) 24
d) 3

Answer:c

6. What is the output of this C code?

1.     #include 

2.     void main()

3.     {

4.         int x = 5.3 % 2;

5.         printf("Value of x is %d", x);

6.     }

a) Value of x is 2.3
b) Value of x is 1
c) Value of x is 0.3
d) Compile time error

Answer:d

7. What is the output of this C code?

1.     #include 

2.     void main()

3.     {

4.         int y = 3;

5.         int x = 5 % 2 * 3 / 2;

6.         printf("Value of x is %d", x);

7.     }

a) Value of x is 1
b) Value of x is 2
c) Value of x is 3
d) Compile time error

Answer:a

8. What is the output of this C code?

1.     #include 

2.     void main()

3.     {

4.         int a = 3;

5.         int b = ++a + a++ + --a;

6.         printf("Value of b is %d", b);

7.     }

a) Value of x is 12
b) Value of x is 13
c) Value of x is 10
d) Undefined behaviour

Answer:d 

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

a) %, *, /, +, –
b) %, +, /, *, –
c) +, -, %, *, /
d) %, +, -, *, /

Answer:a 

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

a) a *= 10;
b) a /= 10;
c) a != 10;
d) a %= 10;

Answer:c 

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

a) char
b) short
c) int
d) float

Answer:d 

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) +, -, *, /, %

Answer:a 

13. What is the output of this C code?

1.     #include 

2.     int main()

3.     {

4.         int a = 10;

5.         double b = 5.6;

6.         int c;

7.         c = a + b;

8.         printf("%d", c);

9.     }

a) 15
b) 16
c) 15.6
d) 10

Answer:a 

14. What is the output of this C code?

1.     #include 

2.     int main()

3.     {

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

5.         int d;

6.         d = a == (b + c);

7.         printf("%d", d);

8.     }

a) Syntax error
b) 1
c) 10
d) 5

Answer: b