Bob drove for one and a half hours at 60/mph. He then hit construction and drove for 2 hours at 45/mph. How many miles did Bob travel in those 3 and a half hours?
Thoughts? Step-by-step reasoning:
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Bob drove for 1.5 hour * 60 / mph = 90 miles. Bod drove for 2 hour * 45 / mph = 90 miles. In total Bob drove 90 + 90 miles = 180 miles.
Thus, the answer is 180.
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