Computer Science - Class 12
Solutions to CBSE Sample Paper - Computer Science Class 12

Predict the output of the following code:

Question 25 CBSE Sample Question Paper 2024 Boards - Teachoo.PNG


Answer by student

The output of the code is:



Detailed answer by teachoo

  • The code defines a function named Changer that takes two parameters P and Q , where Q has a default value of 10 . The function performs the following operations:
    • It divides P by Q and assigns the result to P .
    • It returns the remainder of P divided by Q and assigns it to Q .
    • It returns P from the function.
  • The code assigns 200 to A and 20 to B , and then calls the Changer function with A and B as arguments. The function returns 10.0 and assigns it to A. Then it prints A and B separated by a dollar sign ($), which is 10.0$20.
  • The code calls the Changer function with B as the only argument. The function takes 10 as the default value for Q, and returns 10.0 and assigns it to B. Then it prints A and B separated by a dollar sign ($) followed by three hashes (###), which is 10.0$2.0###.

The reason why the output has decimal values is because of the type conversion that happens when dividing two integers in Python. In Python 3, the division operator (/) always returns a float value, even if the operands are integers. For example, 200/20 returns 10.0, not 10. A float value is a decimal number that can have fractional parts, such as 10.0, 0.5, 3.14, etc.

So, the correct answer is:



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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.