Elif ladder execution in Python - Practice Problems & Coding Challenges

Challenge - 5 Problems

❓ Predict Output

intermediate

Output of elif ladder with multiple conditions

What is the output of this Python code?

Python

x = 15
if x < 10:
    print("Less than 10")
elif x < 20:
    print("Between 10 and 19")
elif x < 30:
    print("Between 20 and 29")
else:
    print("30 or more")

A 30 or more

B Less than 10

C Between 20 and 29

D Between 10 and 19

💡 Hint

Check which condition is true first in the elif ladder.

The variable x is 15. The first if condition (x < 10) is false. The first elif (x < 20) is true, so it prints 'Between 10 and 19' and skips the rest.

❓ Predict Output

intermediate

Elif ladder with overlapping conditions

What will this code print?

Python

score = 75
if score >= 90:
    print("Grade A")
elif score >= 80:
    print("Grade B")
elif score >= 70:
    print("Grade C")
else:
    print("Grade F")

A Grade A

B Grade C

C Grade B

D Grade F

💡 Hint

Check conditions from top to bottom and stop at the first true one.

score is 75. The first two conditions are false. The third condition (score >= 70) is true, so it prints 'Grade C'.

❓ Predict Output

advanced

Elif ladder with nested conditions

What is the output of this code?

Python

num = 0
if num > 0:
    if num % 2 == 0:
        print("Positive even")
    else:
        print("Positive odd")
elif num == 0:
    print("Zero")
else:
    print("Negative")

A Zero

B Positive even

C Positive odd

D Negative

💡 Hint

Check the first condition and then the elif condition.

num is 0. The first if (num > 0) is false, so it checks elif (num == 0) which is true, so it prints 'Zero'.

❓ Predict Output

advanced

Elif ladder with boolean expressions

What will this code print?

Python

a = True
b = False
if a and b:
    print("Both True")
elif a or b:
    print("One True")
else:
    print("None True")

A None True

B Both True

C One True

D SyntaxError

💡 Hint

Evaluate the boolean expressions carefully.

a is True and b is False. The first condition (a and b) is False. The second condition (a or b) is True, so it prints 'One True'.

❓ Predict Output

expert

Elif ladder with variable reassignment inside conditions

What is the output of this code?

Python

x = 5
if x > 10:
    x = x + 10
    print(x)
elif x > 3:
    x = x * 2
    print(x)
else:
    x = x - 1
    print(x)
print(x)

A

10
10

B

10
15

C

10
5

D

10
20

💡 Hint

Check how x changes inside the elif block and then the final print.

x is 5. The first if (x > 10) is false. The elif (x > 3) is true, so x becomes 5*2=10 and prints 10. Then the last print prints the updated x which is 10.