Question

when shipping and important package , you must choose from among 4 companies , each of which offers both ground and air shipping , and a choice of standard express , or overnight delivery . considering these three decisions , how many unique shipping options do you have ?

Answer 1

Assuming standard, express and overnight delivery options may each be either ground or air (which seems unlikely, but the question is worded awkwardly):

Choose a company in 4 ways; ground or air in 2 ways; standard/express/overnight in 3 ways, for a total of:

4 × 2 × 3 = 24 options.

Answer 2

Well, we can choose from 4 different companies, 2 different methods (ground shipping, air shipping), and 3 different times of shipping (express, standard, or overnight)
To figure out how many different options we have, we just need to multiply

Answer 3

thanks @Nurali and @NinjaDevo