Question

Sam can walk 1/3 mile in 12 minutes what is her average speed in miles per hour

Answer 1

Answer: 1.67 mph

Explanation:

Given

Sam walk one-third of a mile in 12 minutes

There is 60 minutes in an hour i.e. Sam take

`\Rightarrow t=(12)/(60)\\\\\Rightarrow t=0.2\ hr`

Average speed is given by

`\Rightarrow v_(avg)=\frac{\text{distance}}{\text{time taken}}\\\\\Rightarrow v_(avg)=((1)/(3))/(0.2)\\\\\Rightarrow v_(avg)=(5)/(3)\ \text{or}\ 1.67\ mph`