A car travels 420=2/5 km in 4 = 1/5hours. Find its speed.
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Answer:
speed = 51 and 11/41 km/h
Step-by-step explanation:
distance = 420 and 2/5 = 2102/5km
time = 41/5 hours
speed = distance/time
=2102/5 / 41/5 km/h
=2102/5 * 5/41 km/h
=2102/1 * 1/41 km/h (the 5 's are cancelled)
=2102/41 km/h
=51 and 11/41 km/h
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