Two motorcyclists move in a straight line and evenly. The speed of one is 104 km / h. The other is 86 km / h.

univerkov | December 27, 2020 | education

Two motorcyclists move in a straight line and evenly. The speed of one is 104 km / h. The other is 86 km / h. And between them – 68 km. How long will it take for the first to catch up with the second in front?

1. The difference between the speeds of the first and second motorcyclists is 104-86 = 18 km / h.
This means that in an hour the first rider will approach the second by 18 kilometers.
2. The first will catch up with the second in 68/18 = 34/9 hours (34/9 = 3 whole 7/9 hours).
Answer: the first motorcyclist will catch up with the second one in front in 3 full 7/9 hours.

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