CBSE Class 11 Computer Science Lists Worksheet

WS 4 – Lists

1. G ive the output of the following code:-

list=['p','r','o','b','l','e','m']
list[1:3]=[]
print(list)
list[2:5]=[]
print(list)

2. G ive the output of the following code:-

l1=[13,18,11,16,13,18,13]
print(l1.index(18))
print(l1.count(18))
l1.append(l1.count(13))
print(l1)

3. W AP in python to create a list of natural numbers from 1 to 50 using for loop.

4. W AP in python to take two lists of same size and create a third list of same size with adding elements at the same location of 1st & 2nd list. E.g. if A=[1,2,3], B= [4,5,6], then C[5,7,9].

5. W AP in Python to accept any ten numbers from the user in a list and display the maximum number along with its position.

6. W AP in Python to calculate &display the factorial of all elements of an integer list.

7. W AP to remove all even numbers from the given list.

8. W AP the print second largest element of the given list.

9. W AP to display cumulative elements of a given list.

For eg LIST is [10,20,30,40]
Output should be [10, 30,60,100]

10. P redict the output of the following code in python:

T1[0]=2
print(T1)

11. W rite the output for the following:

x = [4, 7, 9, 12, 10]
count = 0
for i in x:
count= count + 1
print("Total number of elements = ", count)

12. W rite the output for the following:

A = [6, 2, 7, 9, 1, 3]
Sum = 0
Avg = 0
for x in range(len(A)):
Sum += A[x];
Avg = Sum//len(A);
print("Sum = ",Sum)
print("Average = ", Avg)

13. W rite the output for the following:

x = []
N = eval(input("enter size of list : "))
for i in range(0, N):
x.append(eval(input("enter "+ str(i) + " element : ")))
print("Numbers in the list are ")
print(x)
max1 = x[0]
for i in range(1, N):
if ( x[i] > max1):
max1 = x[i]
print("Maximum value in the list = ", max1)

Please click on below link to download CBSE Class 11 Computer Science Lists Worksheet