A cyclist left point A to point B at a speed of 12 km / h. An hour later, the second cyclist drove out to him

| September 4, 2021 | education

A cyclist left point A to point B at a speed of 12 km / h. An hour later, the second cyclist drove out to him at a speed of 14 km / h and met the first one 1/2 hour after his departure. What is the distance from A to B? How much time did the first velsepedist spend on the whole journey?

1 1/2 hours = 0.5 hours.

2. The cyclist leaving point A was on the way until the moment of meeting 1 + 0.5 = 1.5 hours and traveled during this time 12 x 1.5 = 18 km.

3. The cyclist leaving point B traveled 14 x 0.5 = 7 km to the meeting point.

4. Distance between points A and B: 18 + 7 = 25 km.

5. A cyclist leaving point A will reach point B in 25:12 = 2 hours + 1/12 hour = 2 hours 5 minutes.

Answer: the distance between points A and B is 25 km, the first cyclist will cover the entire path in 2 hours 5 minutes.



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