If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23. Write function that take a number n and return the sum of all the multiples of 3 or 5 below n.

The function is provided below.

Step-by-step explanation:

Running the program in Python, the code for this problem is as follows:

def func (n):

count = 0 * *initializing the sum with 0**

for i in range (1, n):

if i%3 = = 0 or i%5 = = 0:

count = count + 1

return (count)

When the program is executed enter value 1 to 10 one by one and the result will be 23, the sum of all the multiples of 3 and 5.