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Q.

The dimension of the model of multistory building is 1m × 6cm × 1.25m  If the model is drawn to a scale 1:60 find the actual dimensions of building in meters. Find the volume of room whose actual volume is 648 cubic meters.

Class:  9

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a

0.003 cm3

b

86 cm3

c

0.72 cm3

d

92 cm3 

answer is A.

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Detailed Solution

We have 6cm = 0.06m ⇒ 0.06 × 60 = 3.6 m(width)
height = 1.25 × 60 = 75 m
 Velume =  Actual Volume  60×60×60  
 Valume = 648 60×60×60 =0.003  cm 3  

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The dimension of the model of multistory building is 1m × 6cm × 1.25m  If the model is drawn to a scale 1:60 find the actual dimensions of building in meters. Find the volume of room whose actual volume is 648 cubic meters. Class:  9