What is the answer to this question?

5

8

Explanation:

Since the number is already defined as 5, greater_than_zero holds the value true and less_than_zero holds the value false because 5 is greater than zero and not less than 0. Since there are 4 four if conditions, only two holds true i.e the first one and the last one because the in third condition we are using and logic which needs both condition to be true to make the condition true, whereas in fourth we are using or logic which can make condition true even if one condition is true. Hence the number printed will be number and number +3.