Question

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if a scale is 1 inch to 4 miles, find the R.F.
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Answer 1

Answer:-

1:253440

Step by step solution:-

As we know the formula to find Representative Fraction (R.F.) is:

$\sf \blue{R.F. = \frac{distance \: on \: the \: map}{distance \: on \: the \: ground} }$

Now, put the values according to it:

$\sf \blue{R.F. = \frac{1 \: inch}{4 \: miles} }$

Convert miles into inches: (1 mile= 63,360inches)

$\sf \blue{R.F. = \frac{1 \: inch}{4 \times 63,360} }$

$\: \: \: \: \: \: \: \: \sf \blue{ = \frac{1}{253440} }$

$\: \: \: \: \: \: \: \: \sf \blue{ = 1: 253440}$

Hence, the R.F. is 1:253440

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