The motorcyclist covered the distance between the two settlements in 15 minutes, while moving at a speed of 36 km / h.
| March 31, 2021 | education
The motorcyclist covered the distance between the two settlements in 15 minutes, while moving at a speed of 36 km / h. How long will it take it to overcome the return journey if it moves at a speed of 54 km / h?
Find the distance between settlements (15 minutes = 1/4 hour)
36 * 1/4 = 9 km
moving at a speed of 54 km / h the cyclist will need:
9: 54 = 1/6 hours = 10 minutes.
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