Sally bought a few marbles and divided it equally among four of her friends and her brother, George. While playing, George lost 2 marbles and has only 7 marbles at present. Find how many marbles Sally bought in all.
so if George lost 2 marbles, and he now has 7....then he originally had 9 marbles to begin with.
and if Sally bought the marbles and split them equally with 4 friends and her bro...so she split them equally with 5 people....and being she gave George 9, then she gave all the others 9 as well.
that means that she bought (9 * 5) = 45 marbles <==
