Deepak has to cover a distance of 120 km in 2 hours. he drives in the beginning at 50 km/hr for 60 km. at what speed should he drive for the rest of the journey, so that he reached on time?
please solve the question .
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Answer:
75 km/hr
Step-by-step explanation:
Total distance = 120 km.
Total time = 2 hours.
He drives in the beginning at 50 km/hr for 60 km
Time = Distance/Speed
= 60/50
= 6/5 hours.
Remaining time = 2 - (6/5) = 4/5 hours
He drives for 60 km.
Remaining distance = 120 - 60 = 60 km.
Now,
Total Speed = (60 * 5)/4
= 75 km/hr
Hope it helps!
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