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Bob is hiking down a 12-mile country trail. He could hike at 3 mph for the first two hours and then go the rest of the way at 5 mph or he could just go the whole way at 4 mph. How long would each of these options take? Which option is the faster?

 Sep 19, 2020
 #1
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Option 1: 

3 1/5 hrs

 

Option 2:

3 hrs

 

Option 2 is faster.

 Sep 19, 2020

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