Asked by K
Ben can run six miles in forty-eight minutes. If Luke can run twenty percent faster than Ben, how many minutes will Luke take to run nine miles?
Please provide COMPLETE solutions with explanation please
Please provide COMPLETE solutions with explanation please
Answers
Answered by
Steve
Ben's speed is 6mi/48min = 1/8 mi/min
Luke's speed is 6/5 * 1/8 = 3/20 mi/min
9mi/(3/20 mi/min) = 9*20/3 = 60 min
or, Ben's speed is 60/8 = 15/2 mi/hr
Luke's speed is 6/5 * 15/2 = 9 mi/hr
Luke's speed is 6/5 * 1/8 = 3/20 mi/min
9mi/(3/20 mi/min) = 9*20/3 = 60 min
or, Ben's speed is 60/8 = 15/2 mi/hr
Luke's speed is 6/5 * 15/2 = 9 mi/hr
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