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Question
With regard to scale, answer the following question:
Convert the following statement into R.F.
2½ inches on the map = 5 miles on ground.
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Solution
2½ inches on the map = 5 miles on ground
As, 1 mile = 63,360 inches
5 miles = 63,360 × 5 inches
= 3,16,800 inches
Since, R.F. = Distance on the map (in inch)
Distance on the ground (in inch)
R.F. = `2.5/(3,16,800)`
= `1/(1,26,720)`
Thus, R.F. is 1 : 1,26,720
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