They mowed total of 11/15 (5/15 + 2/5) already, so they still have 4/15.
On the 4th stage, 81 friends will be called to be told of the news
It simple ☺ idk how to help u. hope this ll help u understand. place ur pencil on B's dot n make it move 3 units to the right then 2 units to the up. same goes to A n C. u ll get the ans.