On a map with a scale factor 1:10000, the distance between two nearby cities is 4 inches. Find the actual distance between the two cities in miles (upto 2 decimal places).
(Note: 1 foot =12 inches, 1 mile =5280 feet)
A
0.63mi
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B
12.63mi
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C
1.63mi
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D
2.63mi
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Solution
The correct option is A0.63mi Given: ∙ Distance between two cities on the map =4in ∙ Scale factor =110000
We know, Scale factor=dimension of scaled modeldimension of actual object ⇒110000=4actual distance
Multiplying both sides by 10000, ⇒1=40000actual distance ⇒Actual distance = 40000 in
Thus, actual distance between the two cities =40000 in 1mi=5280ft 1ft=12in
Therefore, 1mi=5280×12in =63360in
Actual distance between the two cities =40000in =4000063360mi ≈0.63mi