the distance between two places is 120km. a car travelling at a certain speed can cover the distance in 2hours 30minutes. By how many km/h should the speed of the car be increased for it to take 30minutes less to cover the distance
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Step-by-step explanation:
initial
speed of car = 120/2.5 = 48km/hr
now if it takes 30 min less the speed of car = 120/2= 60km/hr
now increase in speed = 60-48= 12km/hr
Answered by
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Answer:
Answer is 60 km/hr
Step-by-step explanation:
Given distance:120 km, new time: 2 hr
applying formula speed = distance/time
s = 120/2 km/hr
s = 60 km/hr
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