Question

Sabastian is driving 400 miles to meet his friend. He travels 100 miles in the first two hours of his trip. If he continues at the same rate, how long will it take to drive the remaining distance?

Answer 1

His rate so far is (100 mi)/(2 h), so 50 mi/h. The remaining 300 miles will take
.. (300 mi)/(50 mi/h) = 6 h