1. Write a program to input a number and generate the mathematical table of that number only if that number is divisible by 2.
Ans:
num = int(input("Enter a number: "))
if num % 2 == 0:
print(f"Multiplication Table of {num}")
for i in
range(1, 11):
print(num,"x",i,"=",num*i)
else:
print("The number is not divisible by 2. Table cannot be
generated.")
2.
Akshat
is a of class XI. He has written a program for manipulating string. Fill the
blank with appropriate command / method
myaddress="Wazirpur 1, New Yamuna Nagar, New Delhi"
for i in range( ) #line 1
if myaddress[i]. : #line 2
print(myaddress[i].upper(), end="")
elif myaddress[i]. : # line 3
print("*",end="")
else:
print(myaddress[i],end="")
print()
print(len(myaddress.split(","))) #line
4
print(myaddress.replace("New","Old")) #line 5
a. Fill in the blank in Line 1 to calculate length of string
b. Write the function
in line 2 to check lower
letter.
c. Write the function
in line 3 to check
digit.
d.
What will be the output of line 4.
OR
e. What will be the output
of line 5.
Ans
a. Fill
in the blank in Line 1 to calculate length of string
len(myaddress)
b.
Function in Line 2 to check lower letter
islower()
c.
Function in Line 3 to check digit
isdigit()
d.
Output of Line 4
print(len(myaddress.split(",")))
OR
d.
Output of Line 5
print(myaddress.replace("New",
"Old"))
Final
Filled Code (for clarity)
myaddress = "Wazirpur 1, New Yamuna Nagar, New
Delhi"
for i in range(len(myaddress)):
if
myaddress[i].islower():
print(myaddress[i].upper(), end="")
elif
myaddress[i].isdigit():
print("*", end="")
else:
print(myaddress[i], end=""
print()
print(len(myaddress.split(",")))
print(myaddress.replace("New",
"Old"))
3.
Mr
Arvind is software developer and works with infotech Company Ltd Noida. He has assigned to Create a dictionary with the roll number, name and marks of n students in a class and display the names of students
who have marks above 75.
How he can write the correct python
code for the same.
Ans:
n = int(input("Enter number of students: "))
students = {}
for i in range(n):
roll =
int(input("Enter roll number: "))
name =
input("Enter student name: ")
marks =
float(input("Enter marks: "))
students[roll] = {"Name": name, "Marks": marks}
print("\nStudents scoring above 75 marks:")
for roll in students:
if
students[roll]["Marks"] > 75:
print(students[roll]["Name"])
4. Write a program in
Python, which accepts a list L of integers and displays the sum of all such
integers from the list L which end with the digit 3.
For example, if the list L is [ 123, 10,
13, 15, 23] then the program should display the sum of 123, 13, 23, i.e. 159 as
follows: Sum of integers ending with digit 3 = 159
Ans:
L = eval(input("Enter a list of integers:
"))
sum3 = 0
for num in L:
if num % 10
== 3:
sum3 +=
num
print("Sum of integers ending with digit 3
=", sum3)
5.
Write
a program to check whether an integer input by the user is a 5-digit number and
whether it is prime or composite.
Ans:
num = int(input("Enter an integer: "))
# Check whether the number is 5-digit
if 10000 <= abs(num) <= 99999:
print("The number is a 5-digit number.")
# Check
prime or composite
if num >
1:
for i in
range(2, int(num**0.5) + 1):
if
num % i == 0:
print("The number is Composite.")
break
else:
print("The number is Prime.")
else:
print("The number is neither Prime nor Composite.")
else:
print("The number is not a 5-digit number.")
6.
Create
a password validation program that asks the user for a password and checks if a given password meets the following
criteria:
·
At least
8 characters long
●
Contains both uppercase and lowercase letters
●
Has at least one digit
●
Includes at least one special character given (@,#,$, !,*,<,>)
Accept the password
if it meets the above criteria otherwise
continue accepting new password.
Ans:
while True:
pwd =
input("Enter password: ")
upper
= lower = digit = special = False
if
len(pwd) >= 8:
for ch in pwd:
if ch.isupper():
upper = True
elif ch.islower():
lower = True
elif ch.isdigit():
digit = True
elif ch in "@#$!*<>":
special = True
if
upper and lower and digit and special:
print("Password accepted")
break
else:
print("Password does not meet all conditions")
else:
print("Password must be at least 8 characters long")
7.
Write a program to input few names in a list and create
a menu driven program to:
a. Display
the words that starts with vowels
b. Display the words that starts and ends with same
vowel
c. Display
the words that ends with a consonant
d. Display
those words that starts and ends with same consonant
Ans:
names = eval(input("Enter list of
names: "))
vowels = "aeiou"
while True:
print("\nMENU")
print("1. Words that start with vowels")
print("2. Words that start and end with same vowel")
print("3. Words that end with a consonant")
print("4. Words that start and end with same consonant")
print("5. Exit")
choice = int(input("Enter your choice: "))
if choice == 1:
print("Words starting with vowels:")
for w in names:
if w[0].lower() in vowels:
print(w)
elif choice == 2:
print("Words starting and ending with same vowel:")
for w in names:
if w[0].lower() in vowels and w[-1].lower() in vowels and w[0].lower()
== w[-1].lower():
print(w)
elif choice == 3:
print("Words ending with a consonant:")
for w in names:
if w[-1].lower() not in vowels:
print(w)
elif choice == 4:
print("Words starting and ending with same consonant:")
for w in names:
if w[0].lower() not in vowels and w[-1].lower() not in vowels and
w[0].lower() == w[-1].lower():
print(w)
elif choice == 5:
print("Program terminated.")
break
else:
print("Invalid choice. Try again.")
8. Akash wants to store some information about
his class. He wants to save this data in a dictionary where the name of the student is the key and the marks of 5 subjects
along with their total
marks, as the value (in a list).
Help him by performing the following task as asked in order.
●
Accept the name, and marks of 5 subjects
out of 100 in a list for n students
and store it in a dictionary as asked.
●
Then, calculate
the total marks out of 500 for each student
and add it at the end of
the list (value of each dictionary)
●
Then, Display
the name of the students
who secured more than 400 out of 500.
Ans:
students = {}
n = int(input("Enter number of
students: "))
for i in range(n):
name = input("Enter student name: ")
marks = []
print("Enter marks of 5 subjects:")
for j in range(5):
print("Subject ",j+1,end=": ")
m = int(input())
marks.append(m)
total = sum(marks)
marks.append(total)
students[name] = marks
print("\nStudents scoring more than
400 out of 500:")
for name in students:
if students[name][-1] > 400:
print(name)
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