Answer the following question, with explanation first.
John gets lost on his way home. His normal trip is 150 miles and would take him 3 hours. He ends up driving 50 miles out of the way and has to get back on track. How long did the trip take if he kept the same speed?

5
His speed is 150 / 3 = 50 mph.

He was detoured 50 * 2 = 100 miles.

So that adds 100 / 50 = 2 hours.

So the total trip was 3 + 2 = 5 hours.

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Final answer: 5