If a student walks from his house to school at 5km/hr, he is late by 30 minutes. However, if he walks at 6 km/hr, he is late by 5 minutes only. The distance of his school from his house is
2.5 km
3.6 km
11.5 km
12.5 km
5.5 km
Speeds = 5: 6
Here the distance is the same in both the cases,
Time = 6: 5
Difference between the two times = 30 - 5 => 25 minutes
As per the given data,
1 unit = 25 minutes
6 units = 25 x 6 => 150 minutes or 5/2 hours
DIstance = 5 x 5/2 => 12.5 Km