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?
Option 1:
3 1/5 hrs
Option 2:
3 hrs
Option 2 is faster.
