Let t hours be the time taken by Chelsea to travel from A to B. Then since the total time taken by her to travel from A to C is 1 hour, the time taken by Chelsea to travel from B to C should be 1 – t in hours.
From Statement (1) alone, we have that from A to B, her average speed was 40 mph and from B to C her average speed was 60 mph. Remember that Distance = Rate *Time. Hence, the distance between A and B = 40 mph t hours, and distance between B and C = 60 mph (1 – t) hours = 40t + 60 –
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From Statement (1) alone, we have that from A to B, her average speed was 40 mph and from B to C her average speed was 60 mph. Remember that Distance = Rate *Time. Hence, the distance between A and B = 40 mph t hours, and distance between B and C = 60 mph (1 – t) hours = 40t + 60 –
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