Plan scale

The actual width of the room is 66 dm, and the width in the plan is 4.4 cm. What scale corresponds to the plan?

Correct answer:

M = 1:150

Step-by-step explanation:

a1=66 dm a2=4.4 cm dm=4.4:10  dm=0.44 dm  m=a1/a2=66/0.44=150  M = 1:m  M=1:150

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