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In a race from point x to point y and back jack averages 30 miles per hour to point y and 10 miles per hour back to point x sandy averages 20 miles per hour in both directions who wins?
Wiki User
∙ 12y ago
Sandy won the race.
Jack: Runs at 30 mph to Y and at 10 mph back to X. So his avg. speed is given by the formula (2ab)/(a+b) i.e. 15 mph
Sandy: Runs at 20 mph to Y and at 20 mph back to X. So his avg. speed is 20 mph
So only Sandy wins the race.
Hope I'm correct....... Pls consult with your colleagues.....
Wiki User
∙ 12y ago
Phil Frances
Sandy won the
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136 somehow i got 136.25
Tom bill Susan's and sandy went bowling tom score was 132 bills score was 140 Susan's scored 145 and sandy score was 128 what was the average score of all four bowlers?
132+140+145+128 = 545 545/4 = 136.25 Answer: 136.25
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