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here is your answer.hope it helps.
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A car travels 90 km in 2 1/2 hours.
a) How much time is required to cover 30 km with the same speed?
b) Find the distance covered in 2 hours with the same speed.
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Find the speed:
Speed = Distance ÷ Time
Speed = 90 ÷ 2.5 hours
Speed = 36 km/h
a) Find the time needed to cover 30 km
Time = Distance ÷ Speed
Time = 30 ÷ 36 = 5/6 hours = 50 mins
b) Find the distance covered in 2 hours
Distance = Speed x Time
Distance = 36 x 2 = 72 km
Answer: (a) 50 mins (b) 72 km
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