Answer :
Given:
Total distance=1000 m
Total time taken=15 minutes= 15/60=0.25 hour
formula used:
We know
1 km=1000 m
Total distance traveled=1 km
1 hour=60 minutes
15 minutes=0.25 hours
Total time taken=0.25 hours
putting the values of distance and time in the equation:
hence, the speed of tortoise is 4 km/h
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