Python Practice Questions & Solutions Day 5 of Learning Python for Data Science
Welcome back to Day 5 of Learning Python for Data Science journey! In the last article, we explored:
✅ Typecasting in Python
✅ Indexing and Slicing in Strings
Now, it’s time to solve the practice questions given in the previous article.
Each question is followed by a detailed explanation and output.
A whole number
A decimal number
A string
Then print the type of each input using the type() function.
name = input('Enter your name :')
age = int(input('Enter your age :'))
balance = float(input('Enter your balance :'))
print(name, type(name))
print(age, type(age))
print(balance, type(balance))try:
user_input = input("Enter a string containing a number: ")
number = int(user_input)
result = number + 50
print(result)
except ValueError:
print("Invalid input. Please enter a string that can be converted to an integer.") If we get "abc" as a input code will throw error as we cannot convert text into number.
The first character
The last character
The character at index 3
Handle cases where the string has less than 3 characters.
name = input('Enter your name :')
print('First charecter : ',name[0])
print('Last charecter : ',name[-1])
if len(name)<3:
print('length less than 3 charecter')
else:
print('Third charecter : ',name[2])The first 3 characters
The last 3 characters
The entire string in reverse order
string = input('Enter a logn string')
print('The first 3 characters :',string[0:2])
print('The last 3 characters :',string[-3:])
print('The entire string in reverse order :',string[::-1])word = input('enter a word : ')
char = input('Enter the charecter to count : ')
count = 0
for i in word:
if i == char:
count+=1
print(char, f'appears {count} times in ', word)string = input('Enter a palindrom')
if string == string[::-1]:
print('Palindrom')
else:
print('Not a Palindrom') num1 = int(input('Enter the first number :'))
num2 = int(input('Enter the second number :'))
num3 = int(input('Enter the third number :'))
if num1 > num2 and num1 > num3:
print('Largest number is : ',num1)
elif num2 > num3 and num3 > num1:
print('Largest number is : ',num2)
else:
print('Largest number is : ',num3) char = input('Enter a charecter : ').lower()
vowels = 'aeiou'
if char in vowels:
print('Vowel')
elif char not in vowels:
if char.isdigit():
print('Digit')
else:
print('consonant') num = int(input('Enter a number'))
sum = 0
i = 1
while i <=num:
if i % 2 == 0:
sum+=i
i+=1
print(sum) num = int(input('Enter a number'))
sum = 0
for i in range(num+1):
if i % 2 == 0:
sum += i
i += 1
print(sum) num1 = int(input('Enter a number'))
num2 = int(input('Enter a number'))
for i in range(num1, num2+1):
for j in range(2, i):
if i % j == 0:
break
else:
print(i, end = ', ') num = input('Enter a number')
sum = 0
for i in num:
sum+=int(i)
print(sum) num = input('Enter a number')
num1 = int(num[::-1])
print(num1) num = input('Enter a number : ')
length = len(num)
armstrong_sum = 0
for i in num:
armstrong_sum += int(i)**length
if int(num) == armstrong_sum :
print(num, ' is an armstrong number.')
else:
print(num, ' is not an armstrong number.') num = int(input('Enteer number'))
fact = 1
for i in range(1, num+1):
fact *= i
print(fact) num = int(input('Enter a number: '))
a, b = 0, 1
for i in range(num):
print(a, end=', ' if i < num - 1 else '')
a, b = b, a + b a and b are initialized with 0, 1 which represents the first 2 number of fibonachi series.num = input('Enter and number : ')
print(num,f' has {len(num)} digits.') num1, num2 = int(input('Enter the first number : ')), int(input('Enter the second number : '))
gcd = []
'''
Using min because the CGD can not be greater than the small number,
uning +1 because GCD counld be the smaller number istself
'''
for i in range(2, min(num1, num2)+1): # explained above
if num1 % i == 0 and num2 % i == 0:
gcd.append(i)
else:
continue
print('GCD is : ', max(gcd)) num1, num2 = int(input('Enter the first number : ')), int(input('Enter the second number : '))
gcd = []
for i in range(1, max(num1, num2)):
if num1 % i == 0 and num2 % i == 0:
gcd.append(i)
else:
continue
print('LCM is : ', (num1 * num2)/max(gcd)) num = abs(int(input('Enter a number')))
if str(num) == str(num)[::-1]:
print(num, 'is a Palindrome')
else:
print(num, 'is not a palindrome') Understanding these basics is essential for writing robust Python programs. Keep practicing with different inputs to solidify your understanding!
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