Question

Witte a program to find the average of the first P multiples of an integer N​

Answer 1

Answer:

Input  : 10

Output : 5.5

1+2+3+4+5+6+7+8+9+10 = 5.5

Input  : 7

Output : 4.0

1+2+3+4+5+6+7 = 4

Explanation:

Answer 2

Answer:

static int calculate_sum(int a, int N) {

   // Number of multiples

   int m = N / a;

  // sum of first m natural numbers

   int sum = m * (m + 1) / 2;

  // sum of multiples

   int ans = a * sum;

 return ans;

}

// Driver code

public static void main(String[] args) {

       int a = 7, N = 49;

   System.out.println("Sum of multiples of " + a +

                      " up to " + N + " = " +

                              calculate_sum(a, N));

}

}

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