An automobile manufacturer offers a station wagon with either a 6-cylinder engine or a 4-cylinder engine and with either a manual transmission or an automatic transmission. A trailer hitch is also offered, but only on a station wagon with a 6-cylinder engine. How many combinations of the five options listed does the manufacturer offer for its station wagon?
The answer to this question is 3*2 or am I missing out on something?
6-cylinder engine wagons = 2*2 = 4 (manual or automatic, with or without trailer);
4-cylinder engine wagons = 2 (manual or automatic).
Total = 4 + 2 = 6.