A tortoise moves a distance of 100 meter in 15 minutes. What is the average speed of tortoise in km/h ?

Distance moved by the tortoise $d=100\ m=100\times\frac{1}{1000}\ km=\frac{1}{10}\ km$

Time taken $t=15\ minutes=\frac{15}{60}\ hr=\frac{1}{4}\ hr$

Therefore, average speed of the tortoise $=\frac{distance}{time}$

$=\frac{\frac{1}{10}\ km}{\frac{1}{4}\ hr}$

$=\frac{4}{10}\ km/hr$

$=0.4\ km/hr$

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Updated on: 10-Oct-2022

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