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The journey…

Hello, this is a little (and simple^^) maths problem.

A bus is leaving Poitiers at 9:30 am and must reach Copenhagen.After one hour, the bus bursts. The driver decides to change the wheel. This operation takes one hour and 32 minutes, but after 10 minutes with the new wheel, the bus bursts again because the first reparation was bad. This time, the 35 persons in the bus help the driver. This reparation takes one quarter less time than the first one. At 1:30 pm, the people in the bus must eat. They stop during one hour and a half. Later on, the bus goes in a fuel station. There are only 15 liters of petrol left in the tank. When it’s full, the tank has 200 petrol liters. Each five seconds, one liter of fuel fills the tank. When the tank is full, the bus goes on the road again, and finally reaches Copenhagen.

Knowing that Poitiers is about 1544 km from Copenhagen, and that its speed is 90 km/hours, how long did the journay finally take.

Posted in Group 1.