19. A beat travels to a destination upstream in 2 hours and returns in 1.5 hours. If
the current is 5 miles per hour, find the speed of the boat on its speedometer.
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Answer:
speed of the boat on its speedometer. = 35 Miles/hr
Step-by-step explanation:
Let say Speed of Boat in Speedometer or still water = S Miles /hr
Speed of current / Stream = 5 Miles/hr
Upstream Speed = S - 5 miles /hr
Downstream Speed = S + 5 Miles/hr
Distance = Speed * Time
=> 2(S - 5) = 1.5(S + 5) = Distance
=> 2S - 10 = 1.5S + 7.5
=> 0.5S = 17.5
=> S = 35
speed of the boat on its speedometer. = 35 Miles/hr
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