1. 1 cm = 40 m
  2. 1 : 50000
  3. 1 cm = 50 km
  4. \(RF =\frac{1}{300000}\)
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1 Answers

Option 1 : 1 cm = 40 m

Explanation:

Representative fraction (RF):

This scale is expressed in same units. For example, 1 cm = 50 m is represented in RF as 1: 5000 or 1/5000. Here 50 m is converted as 5000 cm.

Convert all options in RF

(i) 1 : 50000

(ii) 1 cm = 40 m is represented in RF as 1 : 4000 or 1/4000

(iii) 1 cm = 50 km , RF = 1 : 5000000

(iv) 1/300000

Compare all RF, we get largest scale, 1 cm = 40 m

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