Answer in brief

The distance between two cities A and B is 5 km. It is represented by a line of 5 cm on the map. Calculate the distance and give the answer in a RF.

Representative Fraction is the ratio of the map distance to ground distance. It is represented as R.F. It can be represented as 1/100000.

Representative Fraction = distance on the map/distance on the ground

Distance between two cities A and B = 5 km

Line of map = 5 cm

R.F. = 5 cm/5 km

=5 cm/500000 cm

= 1/100000

So, R.F. is 1/100000