C Programming Questions and Answers – Arithmetic Operators

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 <stdio.h>

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
View Answer

Answer:b

2. What is the output of this C code?

1.     #include <stdio.h>

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
View Answer

Answer:b

3. What is the output of this C code?

1.     #include <stdio.h>

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
View Answer

Answer:b

4. What is the output of this C code?

1.    #include <stdio.h>

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
View Answer

Answer:b

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

1.     #include <stdio.h>

2.     void main()

3.     {

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

5.     }

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

Answer:c

6. What is the output of this C code?

1.     #include <stdio.h>

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
View Answer

Answer:d

7. What is the output of this C code?

1.     #include <stdio.h>

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
View Answer

Answer:a

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