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These are The Joy of Computing Using Python NPTEL week 2 Answers
The Joy of Computing Using Python Week 2 Nptel Answers (July-Dec 2025)
Question 1.What is the most appropriate data type to take customer input, calculate final price, and print the savings? a) int b) float c) bool d) str
Question 2.What is the correct Python syntax to take customer purchase amount as input? a) input(float()) b) float(input()) c) input = float() d) float = input()
Question 3.Which of the following correctly applies a 20% discount on the purchase amount stored in a variable amount? a) discounted = amount * 0.2 b) discounted = amount – (amount * 0.2) c) discounted = amount / 20 d) amount = amount * 0.8
These are The Joy of Computing Using Python NPTEL week 2 Answers
Question 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? a) if amount > 5000: b) if amount >= 5000: c) if amount = 5000: d) if amount => 5000:
Question 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? a) print(“Original: ₹”, amount, “Saved: ₹”, saved) b) print(f”Original: ₹{amount}, Saved: ₹{saved}”) c) print(f’Original = ₹amount, Saved = ₹saved’) d) print(“Original ₹f{amount}, Saved ₹f{saved}”)
Question 7.Identify the error in the following code: a) Missing else block b) input cannot be used with float c) Colon is missing after if condition d) float should be int
These are The Joy of Computing Using Python NPTEL week 2 Answers
Question 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
Question 10.What will be the output of the following program if the user inputs 4500? a) Final Price: 4050.0 b) Final Price: 4499.9 c) Final Price: 4500.0 d) Final Price: 4499.9
Question 11.Which Python loop is most suitable to print the multiplication table of a number from 1 to 10? a) while loop b) for loop c) if loop d) do-while loop
Question 12.Ravi writes the following code to print the multiplication table of 5. What will be the output of the first line? a) 5 x 0 = 0 b) 5 x 1 = 5 c) 1 x 5 = 5 d) 5 x 11 = 55
These are The Joy of Computing Using Python NPTEL week 2 Answers
Question 13.What will be the output of range(1, 11) inside a for loop? a) 1 to 10 (inclusive) b) 0 to 10 (inclusive) c) 1 to 11 (inclusive) d) 1 to 9 (inclusive)
Ravi wants to track how many tables were generated before the student exited. Which of the following variables and logic should be used? a) Use count = 0, increment count by 1 inside the loop each time a table is printed b) Use count = 1, decrement each time c) Use count = 10, multiply inside the loop d) No counter is needed
Question 20. What will this code output if the user enters the following numbers sequentially in the terminal: 3, 4, 5, 0? a) 3 tables printed, followed by: “You practiced 3 tables.” b) Infinite loop c) Error due to missing condition d) 4 tables printed
Question 21. What is the role of the first while loop in the program? a) It checks whether the number is divisible by 10 b) It calculates the cube of digits c) It finds how many digits are in the number d) It stores the reverse of the number
These are The Joy of Computing Using Python NPTEL week 2 Answers
Question 22. What will be the output when the input is 9474? a) Armstrong Number b) Not an Armstrong Number c) Error due to integer overflow d) Infinite loop
Question 25. If the line temp = num that appears just before the second loop is deleted, what will the program output for input 9474? a) Armstrong Number b) Not an Armstrong Number c) The program hangs d) Raises NameError
These are The Joy of Computing Using Python NPTEL week 2 Answers
Question 26. During execution with input 1000, what is the value of digit in the third iteration of the second while loop? a) 0 b) 1 c) 10 d) The loop has no third iteration
Question 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? a) if sum >= original: b) if original != 0: c) if original > 0: d) if True:
Question 29. Which single-line change will guarantee that no input at all (including 0) is reported as an Armstrong number? a) Initialize sum to 1 instead of 0 b) Initialize count to 1 instead of 0 c) Replace digit = temp % 10 with digit = abs(temp % 10) d) Change the condition to if sum >= original:
These are The Joy of Computing Using Python NPTEL week 2 Answers
Question 30. What does the program print when the user enters -153? a) Armstrong Number b) Not an Armstrong Number c) Infinite loop d) Raises ValueError
Statement: If a variable is assigned a value once, the value in the variable cannot be changed in the variable. a. False, the variable stores all values it was assigned. b. False, the variable stores the value from the latest assignment. c. True, the variable stores only the value from the second-last assignment. d. True, the variable stores value from the initial assignment only.
Which of the following code blocks prints – “Ramesh talks to Suresh and Kamlesh”? a. print(j'Ramesh talks to Suresh and Kamlesh" + and") b. print("Ramesh talks to " "Suresh" " Kamlesh") c. print("Ramesh talks to Suresh" " and " " Kamlesh ") d. print("Ramesh talks to" "Suresh and Kamlesh")
These are The Joy of Computing Using Python NPTEL week 2 Answers
What does the previous question calculate? a. Calculates the factorial of a. b. Calculates the factorial of a-1 and adds 3. c. Calculates the factorial of a-1+3. d. Calculates a multiples of a starting from 1 and adds 3.
Which loop is used to perform a set of repetitive tasks without a condition by default in Python? a. while loop b. for loop c. do-while loop d. while-range loop
What happens when the condition inside the if and while evaluate to false? a. Python interpreter ignores the if/while blocks and halts the program. b. Python interpreter ignores the if/while blocks and proceeds with the program from the lines after the if/while block. c. Python interpreter executes the if/while blocks and the rest of the program. d. Python interpreter executes the if/while blocks, and the program runs in an infinite loop.
These are The Joy of Computing Using Python NPTEL week 2 Answers
The following program might/might not have an infinite loop. Does the program have an infinite loop?
while True:
a.append(n % 10)
a.sort()
for i in a:
if (b < k):
print("FUN")
else:
print("IS BORING")
a. No, the program doesn’t have an infinite loop. b. Yes, it can be prevented by updating the value of a before the if block at line 3. c. Yes, it can be prevented by removing both the if blocks inside the while loop. d. Yes, but it cannot be prevented.
For which of the following values of name and age variables does the following code print ‘You are lucky’?
name = input("Enter your name: ")
age = int(input("Enter your age: "))
flag = False
if age > 18:
flag = True
counter = 0
for i in name:
counter += 1
if flag and (counter % 2 == 0):
print("You are lucky")
else:
print("You are not lucky")
a. aryan, 20 b. arjun, 19 c. aakash, 16 d. anand, 18
The Joy of Computing Using Python NPTEL week 2 Answers(Jul-Dec 2024)
Q1.Statement : If a variable is assigned multiple times, the latest value is not stored in the variable False, the variable stores all values it was assigned False, the variable stores the value from the latest assignment. True, the variable stores the value from the second-last assignment. True, the variable stores value from the initial assignment
These are The Joy of Computing Using Python NPTEL week 2 Answers
Q5. What does previous question calculate ? Calculates the factorial of a. Calculates the factorial of a and adds 2. Calculates the a multiples of a starting from 1 and adds 2. Calculates the factorial of a-1 and adds 2.
Answer: Calculates the factorial of a-1 and adds 2.
Q6. Which loop is used to perform a set of repetitive tasks based on condition in Python? while loop for loop do-while loop while-range loop
These are The Joy of Computing Using Python NPTEL week 2 Answers
Q7. What happens when the condition inside the if and while evaluate to false ? Python interpreter ignores the if/while blocks, and halts the program. Python interpreter ignores the if/while blocks, and proceeds the program from the lines after the if/while block. Python interpreter executes the if/while blocks, and rest of the program. Python interpreter executes the if/while, and the programs runs in an infinite loop.
Answer: Python interpreter ignores the if/while blocks, and proceeds the program from the lines after the if/while block.
Q8. The following program might/might not have an infinite loop. Does the program have infinite loop ?
No, the program doesn’t have infinite loop. Yes, it can be prevented by updating the value of a before the if block at line 3 Yes, it can be prevented by removing both the if blocks inside the while loop. Yes, but it cannot be prevented
Answer: Yes, it can be prevented by updating the value of a before the if block at line 3
