From the village to the city, a cyclist rides for 4 hours at a speed of 12 km / h.
| January 9, 2021 | education
From the village to the city, a cyclist rides for 4 hours at a speed of 12 km / h. How much time will he spend on the return journey for the same gift if the speed is increased by 4 km / h?
Determine the speed at which a cyclist travels from village to city.
We divide the distance by the travel time.
12/4 = 3 km / h.
In the event that he increases his speed by 4 km / h, it will be:
3 + 4 = 7 km / h.
We find time for the return journey.
We divide 12 kilometers by the obtained speed.
12/7 = 1 5/7 hours.
Answer: The cyclist will spend 1 5/7 hours on the way back.
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