Three parachutist have reached terminal velocity at the same distance above the ground below. One at 50kg anoher at 40 kg an 75kg from fastest to slowest what is there total terminal velocities.Then from longest to shortest time rank their order in reaching the ground.

Please clarify your question - you have provided the masses of thrtee parachutists (50 Kg, 40 Kg and 75 Kg) but what does that have to do with terminal velocity? You must have been provided some other information that relates mass (or weight) to the terminal velocity of the parachutist..