Question

2. A bus travelling at 42 km/h covers a distance in 5 h. How much time would it save if it a increased its speed by 8 km/h?​

Answer 1

Answer:

distance cover by bus in 5 hr = speed*time

= 42*5

= 210km

now

new speed of bus = 42+8

= 50km/h

new time taken for cover 210km = 210/50

= 4.2hrs

time save by bus = 5-4.2

= 0.8 hr