Math Question

Mrs. Applebee, the 6th grade math teacher, posed the following problem to one of her classes:
“A wealthy man dies and leaves ten million dollars. One-fifth is to go to his wife, one-fifth to his son, one-sixth to his butler, and the rest to charity. Now, what amount of money does each party get?”
After a very long silence in the classroom, Johnny raised his hand. The teacher hesitantly called on Johnny for his answer.
With complete confidence, Johnny answered, “I figure they each get a good lawyer.”