This is one Nellie (5th grade) brought home from school. (Which raises my

spirits a bit about the quality of education she is getting.) A, B, and C

stand for different digits. Multiply AB by C, the product is BBB; what do

A, B, and C stand for? I did it by eye in around 20 sec, then coaxed Nellie

through it Socratic-style in 5 minutes or so, and we both felt pleased with

ourselves.