A lift travellig at a constant speed of 50km/hour has a winding drum for the lift cable which rotates at 105rpm what is the diameter of the winding drum?

A lift traveling at a constant speed of 50km/hour has a winding drum for the lift cable which rotates at 105rpm what is the diameter of the winding drum?
In 1 hour, the lift cable, which is attached to the lift, moves 50 km = 50,000 meters.
In 1 minute, the lift cable moves 50,000 ÷ 60 = 833⅓ meters
In that same minute, the winding drum rotates 105 revolutions.
105 revolutions = 833⅓ meters
1 revolution = 833⅓ ÷ 105 = 7.94 m
1 revolution = 1 circumference = 2 * π * radius = π diameters
7.94 m = π diameters
1 diameter = 7.94 ÷ π = 2.53 m
Without rounding:
Diameter = ([(50,000 m/hr ÷ 60 min/hr) ÷ 105rev/min] ÷ π diameters/rev) meters per diameter
In 1 hour, the lift cable, which is attached to the lift, moves 50 km = 50,000 meters.
In 1 minute, the lift cable moves 50,000 ÷ 60 = 833⅓ meters
In that same minute, the winding drum rotates 105 revolutions.
105 revolutions = 833⅓ meters
1 revolution = 833⅓ ÷ 105 = 7.94 m
1 revolution = 1 circumference = 2 * π * radius = π diameters
7.94 m = π diameters
1 diameter = 7.94 ÷ π = 2.53 m
Without rounding:
Diameter = ([(50,000 m/hr ÷ 60 min/hr) ÷ 105rev/min] ÷ π diameters/rev) meters per diameter