A car travels 120 km in 2 1/2hours.
(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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Answer:
a)90km=2.5hrs
1km=2.5/90hrs=1/36hrs
30km=30/36=.83hrs=50min
b)2.5hrs=90km
1hr=90/2.5km=36km
1hrs=2*36=72km.
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