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Python Quiz Solution 5 ( new 2021 )

 Python Programming Quiz – 5th 

Week Quiz Solution 2021 Aktu - Prutor

 

[1] What does the following Python3 code do? (using python 3.X version)

n = int(input(‘Enter a number?’))
i = 1
while i <= n:
i = i+1
print (i)

• (a): Print all integers from 1 to n
• (b): Print all integers from 1 to n-1
• (c): Print all integers from 2 to n
• (d): Print all integers from 2 to n+1

Answer: (d) Print all integers from 2 to n+1

Reason :- The main advantage of Python 3 is that it is on the cutting edge, so all the new features will be implemented in there rather than being added to Python 2. Python 3 is more consistent language. Python 3 is the present and future of the language.

[2]  What will the output of the following Python3 program (using python 3.X version)?

n = 13
sum = 0
while (n > 1):
n = n//2
sum = sum + n
print(sum)

• (a): 13
• (b): 10
• (c): 6
• (d): 9

Answer: (b) 10

Reason:-the output of the following Python3 program (using python 3.X version) , so i know that Python 3 is more consistent language. Python 3 is the present and future of the language. and i run this code and the output of 10  ,

[3]  What will the output of the following Python3 program? If the program has error, select the option ERROR (using python 3.X version)

n,p = 9,1
while (n >= 1):
n,p = n//2,n*p
print(int(p))

• (a): 8
• (b): 102
• (c): 9, 36, 72, 72
• (d): Error

Answer:(c)  9, 36, 72, 72

Reason:- when the program has error, select the option ERROR (using python 3.X version) and input the value of  n,p+9,1 etc.. then the output is show 9,36,72,72 .

[4]  The following code should print all positive even numbers less than or equal to N. N is  taken as input from the user. What should replace the ???? for the code to work                 correctly?(using python 3.X version)

       N = int(input(‘Enter N:’))

       i = 1

      while ( i < N ) :   

      if ( ???? ):

        print(i)

      i = i + 1

• (a): i//2 == 0
• (b): i%2 != 0
• (c): i//2 != 0
• (d): i%2 == 0

Answer: (d) i%2 == 0

Reason:- when the  following code should print all positive even numbers less than or equal to N. N is  taken as input from the user. i%2 == 0 should replace the code for the code to work  correctly (using python 3.X version) , because it is while & if statement .

[5]  The following code should print all positive odd numbers less than or equal to N. N is taken as input from the user. What should replace the X for the code to work correctly? (using python 3.X version)

N = int(input(‘Enter N:’))
i = 1
while ( i < N ) :
print(i)
 X

• (a): i%2 == 1
• (b): i = i + 2
• (c): i = 1 + i * 2
• (d): i = i * 2

Answer:(b) i = i + 2 

Reason:- i = i + 2 should replace the X for the code to work correctly . because it is while statement .

python quiz 6  click here