For many years, the posted highway speed limit was 88.5 km/hr (55 mi/hr) but in recent years some rural stretches of highway have increased their speed limit to 104.6 km/hr (65 mi/hr). In Maine, the distance from Portland to Bangor is 215 km. How much time can be saved in making this trip at the new speed limit?
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Approx 18 mins. you can reach early and have a cup of relaxed coffee. drive safe btw
Explanation:
old speed is 88.5 Km/Hr= 24.58 m/sec
New speed is 104.6 Km/hr = 29.06 m/sec
total distance is 215 Km=21500 m
Time taken when on old speed
215000 \div 24.58 = 8476.94 \: secs215000÷24.58=8476.94secs
Time taken when on new speed
215000 \div 29.06 = 7398.48 \: secs215000÷29.06=7398.48secs
Time difference is 1078.45 secs= 18 mins (approx)
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