The local taxi market is controlled by three companies: A-1 Taxi, BumbleBee Cabs, and Cabbies United. Two years ago, A-1 Taxi only accounted for 15% of all taxi trips, while BumbleBee Cabs accounted for 50%. But last year, A-1 Taxis share of all taxi trips doubled from the previous year, and BumbleBee Cabs accounted for twice as many trips as did Cabbies United. What percentage of all of last years taxi trips were driven by Cabbies United?

Question 5 options: