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Karen walked three miles in 48 minutes Bob walked one mile further than Karen if it took bob 1 hour and 5 minutes to complete his walk who walked at a faster rate ?

Respuesta :

Answer:

Karen walked faster than Bob

Step-by-step explanation:

We have given that Karen walked 3 miles in 48 minutes

So distance d = 3 mile

Time [tex]t=48minutes=\frac{48}{60}=0.8hour[/tex]

Speed is given by [tex]speed=\frac{distance}{time}=\frac{3}{0.8}=3.75miles/hour[/tex]

Now Bob walked 1 mile more in 1 hour 5 minute

So distance d = 3+1 = 4

Time [tex]t=1+\frac{5}{60}=1.0833hour[/tex]

So speed will be [tex]speed = \frac{4}{1.0833}=6.692miles/hour[/tex]

So Karen walked faster than Bob

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