Aman has created two lists L1=[6,2,3,8] and L2=[1,5,4]
He has been asked by his teacher to write the code for the following tasks:-
I. To predict the output of the code:-
L3=L2.extend(L1)
print(L3)
II. To display smallest number from L3
III. To add 2nd element from L1 and 3rd element from L2
IV. To arrange the elements of L3 in descending order
V. To predict the output : L1[:2]+L2[2:]
Raman has stored record of a student in a list as follows:-
rec=[‘Thomas’,’C-25’,[56,98,99,72,69],78.8]
Suggest him the Python statements to do the following tasks:-
a. To find the percentage
b. To find marks of 5th subject
c. Maximum marks of the student
d. To find total marks
e. To change the name from ‘Thomas’ to ‘ Charles’
Consider the following dictionary:
Alpha= {‘D’: ‘Delhi’, ‘K’: ‘Kite’, ‘T’: ‘Toy’, ‘B’: ‘Boy’}
Write Python statements for the following:
i) To insert (‘M’ : ‘Monkey’) in the dictionary.
ii) To return the value corresponding to the key ‘K’
iii) To return the length of the dictionary.
iv)To delete the item from the dictionary corresponding to the key ‘B’
Consider the following dictionary:
Alpha={‘D’: ‘Delhi’ , ‘K’ : ‘Kite’ , ‘T’ : ‘Toy’ , ‘B’ : ‘Boy’}
Write Python statements for the following:
i) Alpha[“M”]=”Monkey”
ii) print(Alpha[“K”])
iii) print(len(Alpha))
iv) del Alpha[“B”]
Consider the following dictionary:
name={1:”India”,2:‟australia‟,3:‟Japan‟,4:‟America‟,5:‟China‟}
Perform the below mentioned operations in the
dictionary:
i) Write command traverse a dictionary and print keys one by one
for i in name:
print(i)
ii) Write command to print values only.
print(name.values())
iii) Write command to add new element having key 6 and values as
“Ireland”
name[6]=”Ireland”
iv) Write command to change value of key 3 to “New
Zealand”
name[3]=”New Zealand”
v) write command to delete values Japan
del name[3]
consider the following dictionary: states={‘D’: ‘Delhi’ , ‘K’ : ‘Kerala’ , ‘T’ :
‘Tamil Nadu’ , ‘B’ : ‘Bihar’}
Write Python statements for the following:
a) To insert (‘M’ : ‘Mumbai’) in the dictionary states.
b) To return the value corresponding to the key ‘T’
c) To return the length of the dictionary states.
d) To delete the item from the dictionary corresponding to the key ‘K’
e) To delete the dictionary ‘states’
Consider the following dictionary:
d={1:‟One‟,3:‟Three‟,5,‟Five‟,7:‟Seven‟,9:‟N
ine‟} Perform the below mentioned operations
in the dictionary:
(a) Write command traverse a dictionary and print key & values
(b) ii) Write command to print only values of dictionary.
(c) Write command to delete the second last element of
dictionary.
(d) Write command to delete all elements of the dictionary
(e) v) write command to add another element with key as
33 and value 23
Predict the output based on the list, cod = [98, 45, 62, 14, 1007]
a) print(len(cod))
Ans :5
b) print(cod * 2)
Ans: [98, 45, 62, 14, 1007, 98, 45, 62, 14, 1007]
c) print(1007 in cod)
Ans: True
d)print(cod[:2]+cod[2:])
Ans : [98, 45, 62, 14, 1007]
e) cod=[98, 45, 62, 14, 1007, 1010]
print(cod. pop(1))
The record of a student is stored as a list in the following format(Name, Roll.No,
Marks in 3 subjects, Percentage)
RecordList = [‘Komal’, ‘A-19’, [71, 86, 72], 76.3]
Write Python statements to retrieve the following information from the list, RecordList
● Name of the student
● Mark in the first subject
● Percentage obtained
● Change the name of the Student from “Komal” to “Kunal”
Ans :RecordList[0]
RecordList[2][0]
RecordList[-1]
RecordList[0]=”Kunal”
Predict the output based on the list, cod = [98, 45, 62, 14, 1007]
1. print(len(cod+cod))
2. print(cod[2:4] * 3)
3. print(‘14’ not in cod)
4. print(50-5 in cod)
5. print(cod[::-1]+cod[0:1])
Ans : a.10
b. [62, 14, 62, 14, 62, 14]
c. True
d. True
e. [1007, 14, 62, 45, 98, 98]
Write Python statements for performing the following on a dictionary,
“PTM”
. To check whether the value “s1” is existing as the dictionary’s keys
a. To remove the key ‘s3’ and its corresponding values from the dictionary
b. To find the number of elements in a dictionary
c. To change the value corresponding to “s5” to 99
d. To find the minimum value among the keys of the dictionary
Ans . ‘s1’ in PTM
a. PTM. clear()
b. len(PTM)
c. PTM[‘s5’]=99
d. min(PTM)
