A bus travelling at 42 km/h covers a distance in 5 h . How much time would it save if it increased its speed by 8km/h ?
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Answered by
40
42 km/h then it will travel in 5 hour = 210 km
if speed increases then = 50 km/h
it will take time in 210 km = 210/50 = 4.2 hour
then it will save time = 48 min
if speed increases then = 50 km/h
it will take time in 210 km = 210/50 = 4.2 hour
then it will save time = 48 min
Answered by
54
Distance = Speed x Times = 42 x 5 = 210 km
New Speed = 42 + 8 = 50 km/h
Time = Distance ÷ speed = 210 ÷ 50 = 4.2 hour
Time saved = 5 - 4.2 = 0.8 hours = 48 mins
Answer: 48 mins
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