Question 1 : Calculate the sum of numbers from 1 to n.
Expected Output:
Enter the number : 10
Sum : 55
Using the for loop and the range function.
num = int(input("Enter the number : "))
sum = 0
for i in range(1, num+1):
sum = sum + i
print("Sum :", sum)
Output:
Enter the number : 10
Sum : 55
Question 2 : Print a multiplication table of 5.
Expected Output:
5 x 1 = 5
5 x 2 = 10
5 x 3 = 15
5 x 4 = 20
5 x 5 = 25
5 x 6 = 30
5 x 7 = 35
5 x 8 = 40
5 x 9 = 45
5 x 10 = 50
Using the for loop and the range function.
for i in range(1, 11):
print("5 x", i, "=",5*i)
Output:
5 x 1 = 5
5 x 2 = 10
5 x 3 = 15
5 x 4 = 20
5 x 5 = 25
5 x 6 = 30
5 x 7 = 35
5 x 8 = 40
5 x 9 = 45
5 x 10 = 50
Question 3 : How can we find the total number of digits in a number?
Given Number:
654321
Expected Output:
6
Way 1 : Using the while loop and the Counter Variable.
number = 654321
counter = 0
while number != 0:
number = number//10
counter = counter + 1
print(counter)
Way 2 : Converting number to string ad using the len() function.
number = 654321
my_str = str(number)
print(len(my_str))
Output:
6
Question 4 : Reverse the elements of the list using the for loop.
Given Number:
[10, 20, 30, 40, 50, 60]
Expected Output:
[60, 50, 40, 30, 20, 10]
lst = [10, 20, 30, 40, 50, 60]
lst_length = len(lst)
new_lst = []
for i in range(lst_length-1, -1, -1):
new_lst.append(lst[i])
print(new_lst)
Output:
[60, 50, 40, 30, 20, 10]
Question 5 : Reverse the number using the for loop.
Given Number:
23456
Expected Output:
65432
number = 23456
new_number = 0
while number != 0:
last_digit = number % 10
new_number = (new_number * 10) + last_digit
number = number // 10
print(new_number)
Output:
65432
Question 6 : Find the sum of a series of numbers up to n.
Given Number:
Enter the number = 3
Enter the range = 5
Expected Output:
37035
number = int(input("Enter the number = "))
n = int(input("Enter the range = "))
sum = 0
for i in range(1, n+1):
final_number = i * str(number)
sum = sum + int(final_number)
print(sum)
Output:
37035
Question 7 : Number guessing game with hints.
import random
number = random.randint(1,10)
guess = int(input("Enter the number between 1 and 10 : "))
while guess != number:
if guess < number:
print("Grow your guess.")
else:
print("Bring down your guess")
guess = int(input("Try again! Enter the number between 1 and 10 : "))
print("Congrats! You are right." )
Output:
Enter the number between 1 and 10 : 6
Grow your guess.
Try again! Enter the number between 1 and 10 : 7
Grow your guess.
Try again! Enter the number between 1 and 10 : 8
Grow your guess.
Try again! Enter the number between 1 and 10 : 9
Congrats! You are right.
Question 8 : Check if the year is the leap year or not.
year = int(input("Please enter a year : "))
leap = 0
if year % 100 == 0:
if year % 400 == 0:
leap = 1
elif year % 4 == 0:
leap = 1
if leap == True:
print(year, "is a leap year.")
else:
print(year, "is not a leap year.")
Output:
Please enter a year : 2004
2004 is a leap year.
Question 9 : Print pattern like -6 12 -18 24 -30
limit = int(input("Enter the last number :"))
sign = -1
for i in range(6, limit, 6):
value = i * sign
sign = sign * -1
print(value, end = ' ')
Output:
Enter the last number :40
-6 12 -18 24 -30 36
Question 10 : Print a pattern like 1 + 1/8 + 1/27… and the sum.
num = int(input('Enter the range : '))
sum = 0
print("1", end = ' ')
sum = sum + 1
for i in range(2, num+1):
cube = i ** 3
value = 1/cube
sum = sum + value
print('+ 1 /', cube, end = ' ')
print('=', sum)
Output:
Enter the range : 6
1 + 1 / 8 + 1 / 27 + 1 / 64 + 1 / 125 + 1 / 216 = 1.1902916666666665
