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If it takes 90 minutes to wash 20 vehicles at a car wash. how many minutes does it take to wash 5 vehicles?
Wiki User
∙ 14y ago
Are you seriously asking this question or just playing around?
However if you are serious then it would take approx. 22 minutes and 30 seconds.
This is a basic math question from high school. 90min= 20 Cars ?min=5 cars
20/4=5 so divide 90 by 4 as it take four times as long to wash 20 cars as it does 5 cars so 90/4= 22.5 or 22 min and 30 sec.
90 min = 20cars
22.5 min = 5 cars
Wiki User
∙ 14y ago
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