A group of 26 friend are going to travel to a fetival together, 6 of them can drive. They have a 13 peron mini-bu (1 driver 12 paenger), two car (1 driver and 4 paenger in each car) and the remaining 3 friend will take the train. The number of way in which the friend can travel (ignoring paenger eat poition within each vehicle) i a×1012. Work out the value of a. Give your anwer correct to 3 ignificant figure