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CBSE AISSCE 2016-2017 Marking Scheme for Computer Science
(Sub Code: 083 Paper Code 91 Outside Delhi)

52 42 -10 60 90 20
42 52 -10 60 90 20
42 -10 52 60 90 20
42 -10 52 60 90 20
42 -10 52 60 90 20
42 -10 52 60 20 90

II Pass
42 -10 52 60 20 90
-10 42 52 60 20 90
-10 42 52 60 20 90
-10 42 52 60 20 90
-10 42 52 20 60 90

III Pass
-10 42 52 20 60 90
-10 42 52 20 60 90
-10 42 52 20 60 90
-10 42 20 52 60 90

(1 mark for last set of values of each correct pass)
(b) Write definition of a method ​EvenSum(NUMBERS) to add those values in the list of 3
NUMBERS, which are odd.

Ans def EvenSum(NUMBERS):
n=len(NUMBERS)
s=0
for i in range(n):
if (i%2!=0):
s=s+NUMBERS[i]
print(s)

(½ mark for finding length of the list)
( ½ mark for initializing s (sum) with 0)
( ½ mark for reading each element of the list using a loop)
( ½ mark for checking odd location)
( ½ mark for adding it to the sum)
( ½ mark for printing or returning the value)
(c) Write Addnew(Member) and Remove(Member) methods in python to Add a new 4
Member and Remove a Member from a List of Members, considering them to act as
INSERT and DELETE operations of the data structure Queue.
Ans class queue:
Member=[]
def Addnew(self):
a=input("enter member name: ")
queue.Member.append(a)
def Remove(self):
if (queue.Member==[]):
print "Queue empty"
else:
print "deleted element is: ",queue.Member[0]

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