Question

Draw a flow chart & write an algorithm for problem:
Find the sum of all 3 digit even numbers.
(Hint:: These numbers are 100,102 ... 998. You must use looping).

Answer 1

Answer:

what we should do in the question

Answer 2

Explanation:

class abc

{

public static void main(String s[])

{

int s=0;

for(int i=100;i<=998;i+=2)

s+=i;

System.out.println("Sum is: "+s);

}

}

The count is 450 such numbers (half of all 900 three-digit numbers).

The average of those numbers is 549 (midpoint between 100 and 998).

The sum is the count x average = 450 x 549 = 247050.