Problema Solution
a truck can travel 120 miles in the same time that it takes a car to travel 220 miles. If the truck's rate is 25 miles per hour slower than the cars, find the average of each.
Answer provided by our tutors
Let
v = the average of the truck
v + 25 = the average of the car
d1 = 120 mi the distance the truck travels
d2 = 220 mi the distance the car travels
Since v = d/t follows t = d/v.
The time of the truck = The time of the car
d1/v = d2/(v + 25)
120/v = 220/(v + 25)
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click here to see the equation solved for v
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v = 30 mph
c + 25 = 30 + 25 = 55 mph
The average rate of the truck is 30 mph while the average rate of the car is 55 mph.