Python Conditional Statements Practice Questions with Solutions

Conditional statements help a program make decisions based on different conditions. In this Python conditional statements practice Questions with Solutions set, you’ll learn how to use if, if...else, if...elif...else, and nested if statements through beginner-friendly Python programs.

1. Python Program to Check Whether a Number is Positive or Negative

Problem Statement

Write a Python program to check whether a given number is positive or negative.

Python Solution

# Python Program to Check Whether a Number is Positive or Negative

# Taking input from the user
number = float(input("Enter a number: "))

# Checking the number
if number > 0:
    print("Positive Number")
elif number < 0:
    print("Negative Number")
else:
    print("The number is Zero")

Sample Output

Enter a number: 25
Positive Number

Explanation

The program checks whether the entered number is greater than or equal to zero.

Concepts Covered

if…else statement

2. Python Program to Check Whether a Number is Even or Odd

Problem Statement

Write a Python program to check whether a number is even or odd.

Python Solution

number = int(input("Enter a number: "))

if number % 2 == 0:
    print("Even Number")
else:
    print("Odd Number")

Sample Output

Enter a number: 18
Even Number

Explanation

If the remainder after dividing by 2 is zero, the number is even.

Concepts Covered

if…else
Modulus operator

3. Python Program to Check Voting Eligibility

Problem Statement

Write a Python program to check whether a person is eligible to vote. The minimum voting age is 18 years.

Python Solution

age = int(input("Enter your age: "))

if age >= 18:
    print("Eligible for Voting")
else:
    print("Not Eligible for Voting")

Sample Output

Enter your age: 20
Eligible for Voting

Explanation

The program compares the user’s age with the minimum voting age.

Concepts Covered

Comparison operator
if…else

4. Python Program to Find the Largest of Two Numbers

Problem Statement

Write a Python program to find the larger of two numbers entered by the user.

Python Solution

num1 = int(input("Enter first number: "))
num2 = int(input("Enter second number: "))

if num1 > num2:
    print("Largest Number:", num1)
else:
    print("Largest Number:", num2)

Sample Output

Enter first number: 35
Enter second number: 18
Largest Number: 35

Explanation

The program compares two numbers and displays the greater value.

Concepts Covered

Comparison operators
if…else

5. Python Program to Find the Largest of Three Numbers

Problem Statement

Write a Python program to find the largest among three numbers using if...elif...else.

Python Solution

num1 = int(input("Enter first number: "))
num2 = int(input("Enter second number: "))
num3 = int(input("Enter third number: "))

if num1 >= num2 and num1 >= num3:
    print("Largest Number:", num1)
elif num2 >= num1 and num2 >= num3:
    print("Largest Number:", num2)
else:
    print("Largest Number:", num3)

Sample Output

Enter first number: 45
Enter second number: 18
Enter third number: 30
Largest Number: 45

Explanation

The program compares all three numbers and prints the largest one.

Concepts Covered

if…elif…else
Logical operators

6. Python Program to Check Whether a Year is a Leap Year

Problem Statement

Write a Python program to check whether a given year is a leap year.

Python Solution

year = int(input("Enter a year: "))

if (year % 400 == 0) or (year % 4 == 0 and year % 100 != 0):
    print("Leap Year")
else:
    print("Not a Leap Year")

Sample Output

Enter a year: 2024
Leap Year

Explanation

A leap year is divisible by 400 or divisible by 4 but not by 100.

Concepts Covered

Nested conditions
Logical operators

7. Python Program to Calculate Grade Based on Marks

Problem Statement

Write a Python program to display the grade based on the following criteria:

90 and above → A
75–89 → B
60–74 → C
40–59 → D
Below 40 → Fail

Python Solution

marks = int(input("Enter marks: "))

if marks >= 90:
    print("Grade A")
elif marks >= 75:
    print("Grade B")
elif marks >= 60:
    print("Grade C")
elif marks >= 40:
    print("Grade D")
else:
    print("Fail")

Sample Output

Enter marks: 82
Grade B

Explanation

if...elif...else helps check multiple conditions in sequence.

Concepts Covered

Multiple conditions
if…elif…else

8. Python Program to Check Whether a Character is a Vowel or Consonant

Problem Statement

Write a Python program to check whether a character entered by the user is a vowel or a consonant.

Python Solution

character = input("Enter a character: ").lower()

if character in "aeiou":
    print("Vowel")
else:
    print("Consonant")

Sample Output

Enter a character: a
Vowel

Explanation

The in operator checks whether the character exists in the string "aeiou".

Concepts Covered

if…else
Membership operator

9. Python Program to Check Username and Password

Problem Statement

Write a Python program to check whether the entered username and password are correct.

Username: admin
Password: 12345

Python Solution

username = input("Enter username: ")
password = input("Enter password: ")

if username == "admin" and password == "12345":
    print("Login Successful")
else:
    print("Invalid Username or Password")

Sample Output

Enter username: admin
Enter password: 12345
Login Successful

Explanation

The program checks two conditions using the and operator.

Concepts Covered

Logical operators
Multiple conditions

10. Python Program to Check the Largest Among Four Numbers

Problem Statement

Write a Python program to find the largest among four numbers entered by the user.

Python Solution

num1 = int(input("Enter first number: "))
num2 = int(input("Enter second number: "))
num3 = int(input("Enter third number: "))
num4 = int(input("Enter fourth number: "))

largest = num1

if num2 > largest:
    largest = num2

if num3 > largest:
    largest = num3

if num4 > largest:
    largest = num4

print("Largest Number:", largest)

Sample Output

Enter first number: 12
Enter second number: 35
Enter third number: 28
Enter fourth number: 42
Largest Number: 42

Explanation

The program updates the value of largest whenever it finds a bigger number.

Concepts Covered

Multiple if statements
Comparison operators

11. Python Program to Calculate Grade Based on Marks

Problem Statement

Write a Python program to accept a student’s marks and display the corresponding grade using conditional statements.

Grading Criteria:

90 and above → Grade A
80–89 → Grade B
70–79 → Grade C
60–69 → Grade D
Below 60 → Grade F

Python Solution

marks = float(input("Enter your marks: "))

if marks >= 90:
    print("Grade: A")
elif marks >= 80:
    print("Grade: B")
elif marks >= 70:
    print("Grade: C")
elif marks >= 60:
    print("Grade: D")
else:
    print("Grade: F")

Sample Output

Enter your marks: 85
Grade: B

Explanation

The program checks the marks against multiple conditions using the if-elif-else ladder and displays the appropriate grade.

Concepts Covered

if Statement
elif Statement
else Statement
Comparison Operators

12. Python Program to Check Whether a Year is a Leap Year

Problem Statement

Write a Python program to check whether a given year is a leap year.

Python Solution

year = int(input("Enter a year: "))

if (year % 400 == 0) or (year % 4 == 0 and year % 100 != 0):
    print("Leap Year")
else:
    print("Not a Leap Year")

Sample Output

Enter a year: 2024
Leap Year

Explanation

A leap year is divisible by 400 or divisible by 4 but not divisible by 100.

Concepts Covered

Nested Conditions
Logical Operators
Modulus Operator

13. Python Program to Check Eligibility for a Loan

Problem Statement

Write a Python program to determine whether a person is eligible for a loan based on age and monthly income.

Conditions:

Age must be at least 21 years.
Monthly income must be ₹30,000 or more.

Python Solution

age = int(input("Enter your age: "))
income = float(input("Enter your monthly income: "))

if age >= 21 and income >= 30000:
    print("Eligible for Loan")
else:
    print("Not Eligible for Loan")

Sample Output

Enter your age: 28
Enter your monthly income: 45000

Eligible for Loan

Explanation

The program uses the logical and operator to ensure both eligibility conditions are satisfied.

Concepts Covered

Logical Operators
Conditional Statements
Real-world Applications

14. Python Program to Find the Second Largest Number

Problem Statement

Write a Python program to find the second largest number among three numbers.

Python Solution

a = int(input("Enter first number: "))
b = int(input("Enter second number: "))
c = int(input("Enter third number: "))

numbers = [a, b, c]
numbers.sort()

print("Second Largest Number:", numbers[1])

Sample Output

Enter first number: 15
Enter second number: 40
Enter third number: 28

Second Largest Number: 28

Explanation

The program stores the numbers in a list, sorts them, and displays the second largest value.

Concepts Covered

Conditional Logic
Lists
Sorting

15. Python Program to Calculate Income Tax

Problem Statement

Write a Python program to calculate income tax using the following rules:

Income up to ₹2,50,000 → No Tax
₹2,50,001 to ₹5,00,000 → 5%
₹5,00,001 to ₹10,00,000 → 20%
Above ₹10,00,000 → 30%

Python Solution

income = float(input("Enter your annual income: "))

if income <= 250000:
    tax = 0
elif income <= 500000:
    tax = income * 0.05
elif income <= 1000000:
    tax = income * 0.20
else:
    tax = income * 0.30

print("Income Tax: ₹", tax)

Sample Output

Enter your annual income: 650000

Income Tax: ₹ 130000.0

Explanation

The program calculates tax based on the income slab using the if-elif-else ladder.

Concepts Covered

if-elif-else
Real-world Programming
Conditional Statements

Frequently Asked Questions (FAQs)

1. What are conditional statements in Python?

Conditional statements allow a program to make decisions based on specific conditions. They execute different blocks of code depending on whether a condition is True or False.

2. What are the different types of conditional statements in Python?

Python provides the following conditional statements:

if
if...else
if...elif...else
Nested if

These help handle simple and complex decision-making.

3. What is the difference between `if`, `elif`, and `else`?

if checks the first condition.
elif checks additional conditions if the previous ones are false.
else executes when none of the conditions are true.

4. Can we use multiple conditions in an `if` statement?

Yes. You can combine multiple conditions using logical operators such as and, or, and not.

Example:

age = 22
citizen = True

if age >= 18 and citizen:
    print("Eligible to Vote")

5. What is a nested `if` statement?

A nested if statement is an if statement placed inside another if statement. It is useful when one condition depends on another.

6. Why are conditional statements important in Python?

Conditional statements enable programs to make decisions, validate user input, control program flow, and solve real-world problems such as grading systems, login authentication, banking applications, and business logic.

7. Where are conditional statements used in real-world applications?

Conditional statements are widely used in:

Login and Authentication Systems
Banking and Finance Applications
E-commerce Websites
Student Result Management Systems
Hospital Management Systems
Machine Learning Models
Data Validation and Automation Scripts
Game Development

Chapter Summary

After completing this chapter, you have learned:

if statement
if...else statement
if...elif...else statement
Nested conditions
Comparison operators
Logical operators
Decision-making in Python
Solving real-world problems using conditional statements

Written by Shubhranshu Shekhar, who has trained 20000+ students in coding.

Rishabh Kumar