If I go tubing with 6 other people and we all go tubing. Two people can go on a tub at once for 3 minutes and everyone will go on a tub two times. How long are we going tubing for.
It would be 21 minutes in total. 7 people*2 turns per person= 14 turns 14 turns/2 turns per tub= 7 tubs needed 7 tubs needed*3 mins per tub= 21 minutes in total
