A 3-digit number ABC, when multiplied by a single-digit number D, gives a 4-digit product 37DD, where A, B, C, and D are distinct non-zero digits. What is the value of A + B + C?

If A and B represent single digits such that: A B × 6 ------ B B B then which of the following is true?

If AB × 6 = 1BB, where AB is a two-digit number and 1BB is a three-digit number, then the values of the digits A and B are respectively: