What is the length of the scale, representative fraction given is 3/40 and maximum length to be represented in scale is 100 cm?

A)
7.5 cm
B)
8.5 cm
C)
10 cm
D)
13.33

Correct Answer : Option (A) :   7.5 cm

Explanation : Length of the scale = Representative fraction x Maximum length. Length of the scale = 3/40 x 100 cm = 7.5 cm. That is to draw a scale for 100 cm with 3/40 R.F. We need to draw a 7.5 cm length line and divide to 10 decimeters.

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