An investor wants to purchase one investment among common stocks, preferred stocks and bonds of six industries located in several countries. The investor can use a full-service broker or a discount broker and can buy with cash or margin. If there are 288 possible choices, how many countries is the investor considering?
The Attempt at a Solution
Well there are 6 industries, each industries has a stock or bond to invest in. Then there are 2 broker choices and afterwards, 2 ways to pay.
so i used this equation to solve for the amount of countries there were...
solved for X which came out to be 6 but it was wrong. Can anyone tell what factors I've missed?