A car takes 1hour 12min to complete a journey at 60 km per hour.how fast mus the car finish it in 1 hour??
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Answer:
72 Km per hour
Step-by-step explanation:
Speed = Distance/Time
60 = Distance/ (1.2 Hrs)
i.e 1 hour 12 mins = 1 + 12/60
= 1 + 1/5
= 1 + 0.2 = 1.2 hrs.
Distance = 60 x 1.2
Distance = 72 Kms.
Now new time is 1 hour.
Therefore, Speed = Distance/Time
Speed = 72/1
Speed = 72 Km per hour.
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