Question

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


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Answer 1

Answer:

ans-speed=distance/time.

Step-by-step explanation:

distance=speed×time.

so,distance=42km/hr×5hr=210km

Therefore,time required when speed is increased by8 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.