ICSE BoardEnglish MediumSTD 7GeographyScale and Distance3 Marks
Question
Convert the statement scale 1 cm = loo km into R.F. scale.
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Answer
$\begin{aligned} & \text { R.F. }=\frac{\text { Distance on map }}{\text { Distance on ground }}=\frac{1 cm }{100 km } \\ & =\frac{1 cm }{10000000 cm }=1: 10000000 \ldots[\because 1 \\ & km =1000 m \text { and } 1 m =10 cm ] \\ & \therefore 100 km =100 \times 1000 \times 100=10000000 \\ & cm \end{aligned}$
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