Question

Convert the given statement of scale into representative fraction 5cm represent 20KM

Answer 1

Explanation:

According to the given scale, 5 cm represents 10 km. ∴ The representative fraction of the scale is 1 : 2,00,000. This means that 1 cm on map represents 2,00,000 cm on ground. According to the given scale, 2 inches represents 4 miles

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Answer 2

If 5cm represents 20km, which means

5cm = 2000000

then, 1cm  represents = 2000000/5

Which is = 400000

Therefore, RF = 1 : 400000

Explanation:

• A "Representative fraction" is a ratio/fraction which "expresses" the "mathematical relationship" between "Land's actual length & length on the Map" such as 1:25000 & is "indicated" by a "fraction" whose "numerator" is "1" always. This "fraction" is generally "abbreviated" as "RF". Therefore,
• "Representative Fraction" (RF) = "Map distance/Ground distance"
• The measurement unit of "distances"in  the "denominator & numerator" is the "same". for example, if we say RF of a map is 1/200000 or 1:200000, it implies that 1 unit on the"map" "represents 200000 units on the "ground". If the measurement unit say is CM, we would say 1cm on the "map" "represents" 200000 cms on the "ground". Similarly if the measurement unit is an"inch", we would say 1inch  on the "map" is 200000inches on the "ground"

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what is Representative Fraction ?​ - Brainly.in

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