Page 339 - AI Ver 1.0 Class 9
P. 339

S. No                           Questions                                      Answers

                 1     Which  of  the  following  variable  names  are  invalid?  Give  ●   9thclass  (Cannot  begin  with
                       reasons.                                                      number)

                       And                                                         ●   My name (No spaces allowed)
                       9thclass                                                    ●  # friends (No special character

                       My name                                                        allowed)

                       #friends                                                    ●   Last$name   (No     special
                                                                                     character allowed)
                       False
                       _Rollno

                       _1number
                       Last$name

                       If
                       For
                 2     Which of the following are arithmetic operators?            **

                       !=                                                          *

                       **                                                          //
                       or
                       //

                       +=
                       *
                 3     What is the output of the given statement?                  3

                       print(20 // 3 + 2 - 5)
                 4     What is the output of the given statement?                  i)False

                       (a) (11-22>1+20) or (15//2 == 12/3)                         ii)False
                       (b)  11*2==(20-4//2) and (12-8)>(11*2)

                 5     Convert the given for loop into while loop:                 s=0
                       s=0                                                         i=20
                       for i in range(20,10,-2):                                   while i>10:

                         print(i, end=",")                                           print(i, end=",")
                         s+=i                                                        s+=i

                       print(s)                                                      i-=2
                                                                                   print(s)



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