1.

If a student walks from his house to school at 4 km/hr, he is late 20 minutes. However, if he walks at 5 km/hr, he is late by 5 minutes only. The distance of his school from his house is

A. 5 km
B. 6 km
C. 8 km
D. 9 km
Answer» B. 6 km


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