Return values in Python - Practice Problems & Coding Challenges

Challenge - 5 Problems

❓ Predict Output

intermediate

What is the output of this function call?

Consider the following Python function. What will be printed when result = multiply_and_add(2, 3) is executed and then print(result) is called?

Python

def multiply_and_add(x, y):
    product = x * y
    sum_ = x + y
    return product + sum_

result = multiply_and_add(2, 3)
print(result)

A 11

B 10

C 5

D 6

💡 Hint

Remember to add both the product and the sum of the two numbers.

The function multiplies 2 and 3 to get 6, adds 2 and 3 to get 5, then returns their sum: 6 + 5 = 11.

❓ Predict Output

intermediate

What does this function return?

What is the output of the following code snippet?

Python

def check_even(num):
    if num % 2 == 0:
        return True
    else:
        return False

print(check_even(7))

A False

B True

C None

D 7

💡 Hint

Check if 7 is divisible by 2 without remainder.

7 is not divisible by 2 evenly, so the function returns False.

❓ Predict Output

advanced

What is the output of this recursive function?

What will be printed when the following code runs?

Python

def factorial(n):
    if n == 0:
        return 1
    return n * factorial(n - 1)

print(factorial(4))

A 0

B 24

C 10

D 120

💡 Hint

Factorial of 4 is 4 * 3 * 2 * 1.

factorial(4) = 4 * factorial(3) = 4 * 3 * 2 * 1 = 24.

❓ Predict Output

advanced

What is the value of x after this function call?

What is the value of x after running the code below?

Python

def add_to_list(lst, item):
    lst.append(item)
    return lst

my_list = [1, 2]
x = add_to_list(my_list, 3)
print(x)

A None

B [1, 2]

C [3]

D [1, 2, 3]

💡 Hint

The function appends an item to the list and returns it.

The function adds 3 to the list [1, 2], so the returned list is [1, 2, 3].

❓ Predict Output

expert

What is the output of this function with multiple return statements?

What will be printed when the following code runs?

Python

def test_return(x):
    if x > 0:
        return 'Positive'
    elif x == 0:
        return 'Zero'
    return 'Negative'

print(test_return(-5))

A None

B Zero

C Negative

D Positive

💡 Hint

Check the conditions for x = -5.

Since -5 is less than 0, the function returns 'Negative'.