One pedestrian covered the path in 15 minutes, and the second pedestrian covered the same path in 1/3 hour.
| November 25, 2020 | education
One pedestrian covered the path in 15 minutes, and the second pedestrian covered the same path in 1/3 hour. Determine the speed of the first pedestrian if the speed of the second is 4.5 km / h.
Decision:
1) 4.5 km * 1/3 = 1.5 km – path length
2) 15 minutes = 15/60 hours = 1/4 hours
3) 1.5: 1/4 = 1.5 * 4 = 6 km / h – the speed of the first
Answer: 6km / hour
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