Sum even numbers from 10-100

Answer 1

is this your homework? second question about loops in c++ with no details at all where you're stuck.

Answer 2

Try to code some of it and if you can't manage, post it here and we'll help. But give it a shot first.

Answer 3

int s = 0;
for (int i = 10; i <= 100; s += i, i += 2);