Arithmetic, Unary and Operators

Question 1

What is the purpose of the unary operator++in C?
Subtraction
Addition
Decrement by 1
Increment by 1

Answer 1

Increment by 1

Question 2

What is the result of the expression 15 + 7?
8
10
57
22

Answer 2

22

Question 3

What is the result of the expression 5 + 3 * 2?
26
13
16
11

Answer 3

11

Question 4

Given int a = 7; int b = 3;, what does the expression a % b compute?
2.3
1
4
2

Answer 4

1

Question 5

Given int x = 25; int y = 4;, what is the value of x / y?
29
6
4
25

Answer 5

6

Question 6

If int x = 10;, what does the expression
- - x yield?
10
11
9
8

Answer 6

9

Question 7

Which operator is used for finding the remainder of a division operation in C?
%
/
#
*

Answer 7

%

Question 8

If float a = 7.5; float b = 2.5;
,what is the value of a * b?
17.5
18.75
18
17

Answer 8

18.75

Question 9

Given int num = 8; , what does the expression num++ evaluate to?
7
9
8
10

Answer 9

9

Question 10

How is the order of operations determined in an expression?
Right to left
Left to right
By operator precedence rules
It varies based on the compiler

Answer 10

By operator precedence rules