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 8 km/h?

Asked by bishtbharat869 | 8th Aug, 2019, 08:15: PM

Expert Answer:

A bus travelling at 42 km/h covers a distance in 5 h. 

Distance = Speed x Time = 42 x 5 = 210 km

Speed increased its speed by 8 km/h.

hence, New Speed = 42 + 8 = 50 km/h

Time = Distance ÷ speed = 210 ÷ 50 = 4.2 hr

Time saved = 5 - 4.2 = 0.8 hours = 48 mins

Answered by Sneha shidid | 9th Aug, 2019, 09:59: AM