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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