Page 336 - AI Ver 1.0 Class 9
P. 336

4.  Find the output of the following programs:

                     1. A list is declared as
                        marks = [20,15,45,25,30]
                        What will be the output of
                        print(3*marks[2] - 4*marks[4])
                     2. word=['P','R','O','G','R','A','M']
                        print(word[-4:])
                        print(word[::-2])
                     3. word=['P','R','O','G','R','A','M']
                        print(word.count('R'))
                        print(word.index('R'))
                     4. L=[1,2,3]
                        L*=3
                        print(L)
                     5. list1=[10,20]
                        list2=[30,40]
                        list1.append(25)
                        print(list1)
                        list1.extend(list2)
                        print(list1)




















        Answers

        Exercise (Section A)
        A.  1.  d   2. b     3.  c     4.  a      5.  c      6.  b     7.  a     8.  c      9.  c     10.  b

           11.  b   12. a   13.  b    14.  a     15.  b
        B.  1.  program   2.  sequentia   3. True/False   4. step-by-step   5. interpreter
           6.  arithmetic   7.  Single-line/Multi-line    8. type()       9. program     10. condition
          11.  two       12.  entry-controlled loop      13. heterogeneous               14. mutable
          15.  Forward Indexing
        E.  1.  False     2.  False       3. True         4. True         5. False        6. True
           7.  False      8.  True        9. False       10. True        11. False       12. True
          13.  True      14.  False      15. True





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