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Problem P. 4818. (March 2016)

P. 4818. Hansel and Gretel live at a distance of 250 metres from each other. They both leave the house at half past seven in the morning. Gretel walks at a speed of 1.1 m/s towards the school. Hansel - since he lives further - walks at a speed of 1.5 m/s. Hansel just catches up with Gretel at the school-gate. How far does Gretel live from the school? At what time did they enter the school?

(3 pont)

Deadline expired on 11 April 2016.


Statistics:

107 students sent a solution.
3 points:79 students.
2 points:20 students.
1 point:6 students.
Unfair, not evaluated:2 solutions.

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