Two electric hoists each raise a 200kg steel beam vertically a distance of 3.0m. Hoist X completes the lift in 12s, whereas hoist Y completes the lift in 8.0s. By what factor is the average power output of hoist Y greater than that of hoist X?
a) 2.0
b) 1.5
c) 2.25
d) 1.33