The motorist drove through the tunnel in 1 minute, moving at a speed of 60 km / h.
| August 27, 2021 | education
The motorist drove through the tunnel in 1 minute, moving at a speed of 60 km / h. How long would it take him to pass this tunnel, moving at a speed of 50 km / h
Let’s convert the units of measurement of speed from hours to minutes:
60 km / h = 60 km / 60 min, therefore the length of the tunnel = 1 km.
The motorist must cover the same distance at a speed of 50 km / h, i.e. 50 km in 60 minutes:
50:60 = 1.2 minutes, which equals 1 minute. 12 sec.
Answer: 1 min. 12 sec.
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