a car cover a distance of 33 km in 72 minutes . find the speed during last 18 km if the first 15 km are cover at 25km/h.
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first 15 km : time taken is distance /speed
=15/25
=0.6/10 hr or 36 min
remaining time is 36 min
last 18 km :time is 36 min or 6 /10 hr
speed = dis/time
18/(6/10)
30 km / hr
=15/25
=0.6/10 hr or 36 min
remaining time is 36 min
last 18 km :time is 36 min or 6 /10 hr
speed = dis/time
18/(6/10)
30 km / hr
pihu8282:
thanks
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