A student walks from his house at a speed of $$2\frac{1}{2}$$ km per hour and re

Question

A student walks from his house at a speed of $$2\frac{1}{2}$$ km per hour and reaches his school 6 minutes late. The next day he increases his speed by 1 km per hours and reaches 6 minutes before school time. How far is the school from his house ?

Options:

A . $$\frac{5}{4}$$ km

B . $$\frac{7}{4}$$ km

C . $$\frac{9}{4}$$ km

D . $$\frac{11}{4}$$ km

Answer: Option B

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