Mathematical and Physical Journal
for High Schools
Issued by the MATFUND Foundation
Already signed up?
New to KöMaL?

Problem P. 4508. (February 2013)

P. 4508. The average speed of the tourists when they walk from the shelter house to the hilltop was 1.5 km/h, whilst on the way back it was 3.5  km/h. The average speed for the whole distance from the shelter house back to the shelter house was 2 km/h. What fraction of the total time of the excursion did the tourist spend on the hilltop having a rest?

(3 pont)

Deadline expired on March 11, 2013.


Sorry, the solution is available only in Hungarian. Google translation

Megoldásvázlat. A teljes idő \(\displaystyle \frac{1}{21}\) részét, vagyis majdnem 5 százalékát.


Statistics:

164 students sent a solution.
3 points:140 students.
2 points:2 students.
1 point:9 students.
0 point:11 students.
Unfair, not evaluated:2 solutionss.

Problems in Physics of KöMaL, February 2013