Question

Write a program in c++ to input a number and find the last digit of the number is a multiple of 5 or not​. explain​

Answer 1

Answer:

→ This is the required C++ program for the question.

#include <iostream>

using namespace std;

int main()

{

   int n,ld;

   cout << "Enter a number: ";

   cin >> n;

   ld=n%10;

   if(ld%5==0)

       cout << "Last digit of the given number is a multiple of 5.";

   else

       cout << "Last digit of the given number is not a multiple of 5.";

   return 0;

}

Explanation:

• The modulus operator is used to calculate the remainder obtained when a number is divided by another number. So, to get the last digit of the number, we can use modulus operator and divide the number by 10 to get he remainder.
• After finding out the remainder obtained, we will divide the last digit by 5. If the last digit is a multiple of 5, then the number is divisible by 5, i.e., the remainder obtained by dividing the number by 5 is 0.
• So, we will check if the last digit is exactly divisible by 5 or not. If true, display the message that "Last digit of the number is divisible by 5" else not.

→ Refer to the attachment.