Map

On the tourist map at a scale of 1 : 50000 is distance between two points along a straight road 3.7 cm. How long travels this distance on a bike at 30 km/h? Time express in minutes.

Result

t =  3.7 min

Solution:

$s = vt \ \\ s = \dfrac{ 3.7 }{ 100 000} \cdot 50000 = 1.85 \ km \ \\ t = \dfrac{ s }{ v } = \dfrac{ 1.85 }{ 30 }= 0.062 \ h = 3.7 \ \text{min}$

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