Question 27 - Sample Paper 2 by Teachoo - Teachoo Sample Paper

Write the output of the following program:

Str = "Python Programming"

index = 0

while index < len(Str):

  if Str[index] in "aeiouAEIOU":

    print(Str[index].lower(), end=" ")

  elif index % 3 == 0:

    print(Str[index].upper(), end=" ")

  else:

    print(Str[index], end="")

    print("+", end=" ")

  index += 2

Answer:

Answer by student

The output of the program is:

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P t+ o   r+ g+ a m+ n+ 

Detailed answer by teachoo

To understand the output of the program, we need to follow these steps:

• The program defines a string variable Str with the value "Python Programming" .
• The program also defines an integer variable index with the initial value 0 .
• The program uses a while loop to iterate over the characters of Str from left to right, as long as index is less than the length of Str .
• Inside the loop, the program checks three conditions for each character of Str at the position index :

• If the character is a vowel (either uppercase or lowercase), it prints the character in lowercase, followed by a space.

• If the character is not a vowel and index is divisible by 3 (i.e., index % 3 == 0 ), it prints the character in uppercase, followed by a space.
• If the character is not a vowel and index is not divisible by 3, it prints the character as it is, followed by a plus sign ( + ) and a space.
• After printing each character, the program increments index by 2 , skipping one character in between.
• The loop ends when index becomes equal to or greater than the length of Str .
• The output of the program is a sequence of characters separated by spaces and plus signs, as shown above.

So, the correct answer is P t+ o   r+ g+ a m+ n+ .

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