Question

Observe the given Python code carefully:

a = 20
def convert(a):
    b = 20
    a = a + b
convert(10)
print(a)
    

Select the correct output from the given options:

• A. 10
• B. 20
• C. 30
• D. Error

Hint:

To modify a global variable inside a function, use the global} keyword. Otherwise, changes to the variable inside the function are local and do not affect the global scope.

Answer 1

The Correct Option is B

In Python, variables declared within a function are scope-bound to that function and do not influence variables external to it. Consequently, the variable 'a' within the 'convert()' function is local; its modification does not alter the global 'a'. Thus, the output of 'a' outside the function retains its initial value of 20.