IN this multiplication problem each letter P, Q and R represents a different digit. What 3 digit number is represented by PQR?
PQR x 3 = QQQ
3xPQR = QQQ = Qx111 ---->
PQR = 37 Q ---->
P0R = 27 Q
You know that 25x4 = 100, so you could try Q = 4, beause you ten get a number slightly larger than 100 which will probably have a zero as the second digit:
27 x 4 = 108
So, Q = 4 and we see that P = 1 and
R = 8.