Question

A bus travelling at 42 km/hrs covers a distance in 5 hrs . How much time would it save if it increased its speed by 8 km/hrs.........please help me to solve this you may get 50 points.....this question is from speed,time,and distance..

Answer 1

Step-by-step explanation:

By formula :

Speed=distance/time………(1)

Distance=Speed*time

So,

Distance=42km/hr*5hr=210 km

Therefore,time required when speed is increased by 8 km/hr:

Time =Distance/speed….from(1)

Increased speed=(42+8)km/hr=50km/hr

Time=210/50

Time=4.2hr

Time required when speed is increased by 8km/hr is 4.2 hr.

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