Learn
C Programming MCQ Questions and Answers on C Arithmetic Operators like Modulo
Division Operator, Plus, Minus, Star and Division Operators. Operator
Precedence and Priority is also explained. Easily attend Job interviews after
reading these Multiple Choice Questions.
Go
through C Theory Notes on Arithmetic Operators before studying
questions.
1) What is the Priority among (*, /, %), (+, -) and
(=) C Operators.?
A) (*, /, %)
> (+, -) < (=)
B) (*, /, %)
< (+, -) < (=)
C) (*, /, %)
> (+, -) > (=)
D) (*, /, %)
< (+, -) (+, -) == (=)
Answer [=]
C
Explanation:
Assignment operator in C has the
least priority.
2) What is the output of the C statement.?
int
main()
{
int a=0;
a = 4 + 4/2*5 + 20;
printf("%d", a);
return 0;
}
A) 40
B) 4
C) 34
D) 54
Answer [=]
C
Explanation:
/ and * has
equal priority. But associativity is from L to R.
4 + 2*5 + 20
4 + 10 + 20 = 34
3) What is the output of the C Program.?
int
main()
{
int a=0;
a = 10 + 5 * 2 * 8 / 2 + 4;
printf("%d", a);
return 0;
}
A) 124
B) 54
C) 23
D) 404
Answer [=]
B
Explanation:
10 + 10*8/2
+ 4
10 + 80/2 +
4
10 + 40 + 4 = 54
4) What is the output of the C Program.?
int
main()
{
int a=0;
a = 4 + 5/2*10 + 5;
printf("%d", a);
return 0;
}
A) 29
B) 5
C) 4
D) 34
Answer [=]
A
Explanation:
5/2 is 2
only because both numerator and denominator are integers. So only int value i.e
2 is the result.
4 + 2 * 10 +
5
4 + 20 + 5 = 29.
5) What is the output of the C Program.?
int
main()
{
int a=0;
a = 10 + 2 * 12 /(3*2) + 5;
printf("%d", a);
return 0;
}
A) 31
B) 19
C) 11
D) 29
Answer [=]
B
Explanation:
Paranthesis
changes the associativity of operators.
10 + 2 * 12
/ (3*2) + 5;
10 + 24 /
(3*2) + 5;
10+ 24/6 +
5;
10 + 4 + 5 = 19;
6) What is the output of the C Program.?
int
main()
{
int a=0;
a = 10 + 2 * 12 / 3 * 2 + 5;
printf("%d", a);
return 0;
}
A) 19
B) 31
C) 11
D) 25
Answer [=]
B
Explanation:
10 + 2 * 12
/ 3 * 2 + 5;
10 + 24/3*2
+ 5;
10 + 8*2 +
5;
10 + 16 + 5 = 31;
7) What is the output of the C Program.?
int
main()
{
float a=10.0;
a = a % 3;
printf("%f", a);
return 0;
}
A) 0
B) 1
C) 1.000000
D) Compiler
error.
Answer [=]
D
Explanation:
You can use
the operator Modulus Division % with only integers.
error: invalid operands to binary % (have
‘float’ and ‘int’)
a = a % 3;
^
8) What is the output of the C Program.?
int
main()
{
float a=10.0;
a = (int)a % 3;
printf("%f", a);
return 0;
}
A) 0
B) 1
C) 1.000000
D) Compiler
Error.
Answer [=]
C
Explanation:
Type casting
from float to int is done by (int).
(int)10.000000
= 10;
10%3 = 1.
Reminder of the division of 10 by 3.
%f in printf prints it as 1.000000.
9) What is the output of the C Program.?
int
main()
{
int a=0;
a = 14%-5 - 2;
printf("%d", a);
return 0;
}
A) 0
B) -4
C) -2
D) 2
Answer [=]
D
Explanation:
14%5 =
4 ( Reminder)
14 %
-5 = 4. Yes sign of the reminder is the sign of Numerator.
4- 2 = 2;
10) What is the output of the C Program.?
int
main()
{
int a= 3 + 5/2;
printf("%d", a);
return 0;
}
A) 3
B) 2
C) 5
D) Can not
assign an expression to variable at the time of declaration.
Answer [=]
C
Explanation:
Assignment
Operator = in C language has the least priority. So the right hand side
expression is evaluated first and then assigned to the left side variable.
a = 3 + 5/2;
a = 3 + 2;
a = 5;
0 Comments