The Joy of Computing using Python Week 2 NPTEL Assignment Answers 2025

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✅ Subject: The Joy of Computing using Python
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NPTEL The Joy of Computing using Python Week 2 Assignment Answers 2025

1. What is the most appropriate data type to take customer input, calculate final price, and print the savings?

• int
• float
• bool
• str

Answer : See Answers 

2. What is the correct Python syntax to take customer purchase amount as input?

• input(float())
• float(input())
• input = float()
• float = input()

Answer :

3. Which of the following correctly applies a 20% discount on the purchase amount stored in a variable amount?

• discounted = amount * 0.2
• discounted = amount – (amount * 0.2)
• discounted = amount / 20
• amount = amount*0.8

Answer :

4. If a customer spends more than ₹5000, they get a 20% discount. Which of the following is the correct if statement to check this?

• if amount > 5000:
• if amount >= 5000:
• if amount = 5000:
• if amount => 5000:

Answer :

5. What will be the output of the following code if the amount entered is 6000?

• 6000
• 4800
• 5000
• 1200

Answer :

6. Ria wants to show the customer how much they saved. Which line of code correctly prints both the original price and the savings using f-strings?

• print(“Original: ₹”, amount, “Saved: ₹”, saved)
• print(f”Original: ₹{amount}, Saved: ₹{saved}”)
• print(f’Original = ₹amount, Saved = ₹saved’)
• print(“Original ₹f{amount}, Saved ₹f{saved}”)

Answer : See Answers 

7. Identify the error in the following code:

• Missing else block
• input cannot be used with float
• Colon is missing after if condition
• float should be int

Answer :

8. What is the final price after applying the following logic?

• 4000
• 3600
• 3200
• 3500

Answer :

9. Which of the following best implements nested if logic to apply 20% discount if amount > 5000 and is a loyalty customer? Assume: is_loyal = True

Answer :

10. What will be the output of the following program if the user inputs 4500?

• Final Price: 4050.0
• Final Price: 4499.9
• Final Price: 4500.0
• Final Price: 4499.9

Answer :

11. Which Python loop is most suitable to print the multiplication table of a number from 1 to 10?

• while loop
• for loop
• if loop
• do-while loop

Answer :

12. Ravi writes the following code to print the multiplication table of 5. What will be the output of the first line?

• 5 x 0 = 0
• 5 x 1 = 5
• 1 x 5 = 5
• 5 x 11 = 55

Answer :

13. What will be the output of range(1, 11) inside a for loop?

• 1 to 10 (inclusive)
• 0 to 10 (inclusive)
• 1 to 11 (inclusive)
• 1 to 9 (inclusive)

Answer :

14. Which of the following loops will correctly continue asking the user for a number until they enter 0?

Answer :

15. What is the total number of lines printed by the following code ?

• 7
• 10
• 11
• 0

Answer : See Answers 

16. Ravi wants to track how many tables were generated before the student exited. Which of the following variables and logic should be used?

• Use count = 0, increment count by 1 inside the loop each time a table is printed
• Use count = 1, decrement each time
• Use count = 10, multiply inside the loop
• No counter is needed

Answer :

17. What will be the output of the following code?

• Prints multiples of 3 up to 15
• Prints an error
• Infinite loop
• Prints nothing

Answer :

18. Ravi wants the output to look like: 5 x 1 = 5 but accidentally writes:

For input num = 5, i = 1, what will be printed?

• 5 x 1 = 5
• 1 x 5 = 5
• x 5 = 5
• i x num = result

Answer :

19. Which keyword is used to skip the current iteration of a loop and continue with the next one?

• stop
• break
• continue
• pass

Answer :

20. What will this code output if the user enters the following numbers sequentially in the terminal: 3, 4, 5, 0?

• 3 tables printed, followed by: “You practiced 3 tables.”
• Infinite loop
• Error due to missing condition
• 4 tables printed

Answer :

In the quiet village of Phulera, the computer in the Panchayat office starts displaying strange numbers. Abhishek Sir, the village secretary, thinks it might be a software glitch. But his close friends Vikas and Prahlad suspect something else — maybe it’s a secret code!

They notice the numbers follow some strange patterns:

. Armstrong numbers (like 153)

. Neon numbers (like 9 → 9² = 81 → 8 + 1 = 9)

. Palindrome numbers (like 121)

So, the team writes a Python program to check if a number is an Armstrong number — one of the patterns they suspect is being used.

21.

What is the role of the first while loop in the program?

• It checks whether the number is divisible by 10
• It calculates the cube of digits
• It finds how many digits are in the number
• It stores the reverse of the number

Answer : See Answers 

22. What will be the output when the input is 9474?

• Armstrong Number
• Not an Armstrong Number
• Error due to integer overflow
• Infinite loop

Answer :

23. How many times does the body of each while loop execute when the input is 1000?

• 3
• 4
• 5
• It never executes

Answer :

24. What is the value of sum immediately after the second while loop finishes when the input is 370?

• 0
• 370
• 3700
• 27

Answer :

25. If the line temp = num that appears just before the second loop is deleted, what will the program output for input 9474?

• Armstrong Number
• Not an Armstrong Number
• The program hangs
• Raises NameError

Answer :

26. During execution with input 1000, what is the value of digit in the third iteration of the second while loop?

• 0
• 1
• 10
• The loop has no third iteration

Answer :

27. Which replacement for the line if sum == original: will make the program print “Armstrong Number” for every positive input but “Not an Armstrong Number” for zero?

• if sum >= original:
• if original != 0:
• if original > 0:
• if True:

Answer :

28. What final value does count take when the input is 1634?

• 3
• 4
• 5
• 6

Answer :

29. Which single-line change will guarantee that no input at all (including 0) is reported as an Armstrong number?

• Initialize sum to 1 instead of 0
• Initialize count to 1 instead of 0
• Replace digit = temp % 10 with digit = abs(temp % 10)
• Change the condition to if sum >= original:

Answer :

30. What does the program print when the user enters -153?

• Armstrong Number
• Not an Armstrong Number
• Infinite loop
• Raises ValueError

Answer : See Answers 

NPTEL The Joy of Computing using Python Week 2 Assignment Answers 2024

1. At any given point during a program’s execution, what value is held within a variable?

• The value it was initially assigned when it was created.
• The sum of all values that have ever been assigned to it.
• The most recent value that was assigned to it.
• The average of all values that have ever been assigned to it.

Answer: c
Explanation: A variable always holds the most recently assigned value during program execution, replacing any previous values.

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2. What will be the output of the following Python code snippet?

Which of the following represents the correct output if the user inputs “25”?

• The value is: 25
• 25
• The value is:
• None of the above

Answer: a
Explanation: If the code includes a print statement like print("The value is:", value) and user inputs “25”, the output will be "The value is: 25".

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3. What are the possible loop values that can be specified in the range argument of a for loop in Python, and why are these values used?

• Integers, representing the starting and ending points of the loop, allowing iteration through a specified range of numbers.
• Floating-point numbers, enabling iteration through decimal ranges with precise steps.
• Strings, facilitating iteration through characters in a specified string
• Tuples, allowing iteration through multiple sequences simultaneously.

Answer: a
Explanation: The range() function in Python works only with integers, which specify where to start and stop iteration.

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4. What values can be used in the argument of a while loop in Python, and why are these values used?

• Integers, representing the starting and ending points of the loop, allowing iteration through a specified range of numbers
• Boolean expressions or conditions, enabling the loop to execute until the condition becomes False.
• Floating-point numbers, allowing iteration through decimal ranges with precise steps.
• Strings, facilitating iteration through characters in a specified string.

Answer: b
Explanation: A while loop in Python continues running as long as its Boolean condition evaluates to True.

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5. What types of conditional entries can be used in a Python if statement, and why are these entries used?

• Integers, representing specific numeric values to check against a variable, ensuring a match for equality
• Boolean expressions or conditions, evaluating to True or False and determining the path of execution in the code.
• Strings, enabling comparison of text values for exact matches in the condition
• Floating-point numbers, allow range-based conditions to check if a variable falls within a specific numerical range.

Answer: b
Explanation: Python if statements depend on Boolean expressions to decide whether a block of code should be executed.

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6. Consider the following code snippet:

What does the code do?

• Takes an input n, computes the multiplication table of n from 1 to 10, and prints each multiplication.
• Takes an input n, computes the multiplication table of n from 1 to 11, and prints the final product.
• Takes an input n, computes the multiplication table of n from 1 to 10, and prints the final product.
• Takes an input n, initializes i to 1, and prints the multiplication of n and i without any loop.

Answer: a
Explanation: A loop running from 1 to 10 will multiply n with each i and print the result, forming a multiplication table.

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7. Consider the following code snippet:

What does the code do?

• Takes an input number, computes the multiplication table of numbers from 1 to 10, and prints each multiplication
• Takes an input number, computes the multiplication table of numbers from 1 to 11, and prints the final product.
• Takes an input number, computes the multiplication table of numbers from 1 to 10, and prints the final product.
• Takes an input number, initializes i to 1, and prints the multiplication of number and i without any loop.

Answer: a
Explanation: This loop prints each step of the multiplication table one by one from 1 to 10.

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8. Consider the following code snippet:

What does the code do?

• Takes an input num, computes the factorial of num, and prints the factorial value.
• Takes an input num, computes the product of numbers from 1 to num, and prints the final product.
• Takes an input num, computes the sum of numbers from 1 to num, and prints the final sum.
• Takes an input num, initializes the result to 1, and prints the value of the result without any factorial computation.

Answer: a, b
Explanation: Computing factorial involves multiplying numbers from 1 to num, which matches both the first and second options.

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9. An Integrated Development Environment (IDE) is a software application that provides comprehensive facilities to computer programmers for software development. Which of the following are IDEs?

• PyCharm
• Spyder
• Visual Studio Code (VS Code)
• C# (pronounced “C sharp”)

Answer: a, b, c
Explanation: PyCharm, Spyder, and VS Code are all IDEs. C# is a programming language, not an IDE.

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10. A Python distribution is a software bundle, which contains a Python interpreter and the Python standard library. What is Anaconda being discussed in lectures?

• A species of snake
• A type of programming language
• An integrated development environment (IDE)
• A Python distribution for scientific computing and data science

Answer: d
Explanation: Anaconda is a Python distribution that includes tools like Jupyter, NumPy, Pandas, and is widely used in data science.