Mr. Wayne bungee jumps from the top of a building straight to the ground at a constant speed. 3 seconds after he starts plummeting he passes the 20th floor. 15 seconds after he starts plummeting he passes the 5th floor. Each floor is 3.4 meters high. What is Mr. Wayne's speed in meters per second?  Choose the most appropriate option:
A) 3	B) 3.75	C) 4	D) 4.25	E) 5
IMO: 4.25   15 Floors * 3.4 Meter/Floor = 51 Meters   Time= 12 sec   Rate * 12 = 51   Rate= 51/12= 
<gadget id="calculator">51/12</gadget>
<output>17/4 = around 4.25</output>
4.25   Answer 4.25
<result>D</result>
Mr. Wayne bungee jumps from the top of a building straight to the ground at a constant speed. 3 seconds after he starts plummeting he passes the 20th floor. 15 seconds after he starts plummeting he passes the 5th floor. Each floor is 3.4 meters high. What is Mr. Wayne's speed in meters per second?