1.

A student starting from his house walk at a speed of 2.5 km per hour and reaches his school 6 minute late.Next day at the same time he increases his speed by 1 km per hour and reaches 6 minute early. The distance between his school and house is?

A. 4 km
B. 6 km
C. 3.5 km
D. 1 3/4 km
Answer» E.


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