mr. bonti is replacing the square tiles in his bathroom each side of the new tile is 3 inches longer than the?

Question

old tile. Each new tile covers 39 square inches more than the old tile. Howbig were the old square tiles?
If the area of the room is 5120 square inches, how many new tiles will he need?
answer A.
answer B.

Answer 1

none of the above
Mr bonti should call someone who knows how to tile a bathroom..
good luck..

Answer 2

b