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Question
Convert the following scales into R.F.
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Solution
If a scale is 2 cm., to 1 km., calculate the R.F.
R.F. = `"Distance on the map"/"Distance of the ground"`
`= (2 "cm")/(1 "km") = (2 "cm")/(1000 xx 100 "cm")`
`= 1/ 50000 = 1 : 50000`
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