The motorcyclist covered the distance from one city to another in 3 hours, moving at a speed of 54 km / h.

| January 8, 2021 | education

The motorcyclist covered the distance from one city to another in 3 hours, moving at a speed of 54 km / h. How long will it take for a motorcyclist to return, but on a different road, if it is 22 km longer than the first, and his speed will be 8 km / h less than the previous one?

To solve this problem, recall the formula for calculating the distance. Distance is equal to the product of time and speed. s = v * t, where s is distance, v is speed, t is time. Let’s calculate what the distance is, knowing that the motorcyclist covered it in 3 hours at a speed of 54 km / h.
S = 3 * 54 = 162 km.
Let’s calculate what the return distance is equal to.
162 + 22 = 184 km.
Let’s calculate what the speed is equal to.
54 – 8 = 46 km / h.
Let’s calculate how long it will take to drive 184 kilometers at a speed of 45 km / h.
t = 184/46 = 4 hours.
Answer: 4 hours.



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