A car travels at a speed of 57 km/h for three hours. If the long Journey of 321 km is to be completed in another 5/2 hours, at what speed must the car travel in order to complete journey in time?
Answers
Answer:
The answer to this question is 60 km/hr. To understand how it is done see the explanation.
Step-by-step explanation:
According to the question,
The car has already travelled to a particular distance with 57km/hr speed and time taken is 3 hours.
Let the distance be 'x'
Using the formula,
Distance=Speed x Time
Distance=57 x 3
Distance=171 km
The car has to travel a total distance of 321 km and has already travelled 171 km. Now we have to find the remaining distance and speed at which it should travel so that it can reach the distance in 2.5 hours.
Remaining distance=321 km-171 km=150km
Now we have to find the speed,
Using the formula,
Speed=Distance/Time
Speed=150/2.5 hr
Multiply both distance and time by 10
Speed=1500/25
Speed=60 km/hr
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