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Question: A scale drawing of a bus is 1 in. : 4 ft. Find the actual height of the bus, if the height of the model is 4 in.



A ) 18 ft
B ) 15 ft
C ) 16 ft
D ) 17 ft

Steps to derive

 [Write the scale and its related proportion.]
1 1in.4ft = 4in.n

 [Write the cross products.]
2 n x 1 in. = 4 in. x 4 ft

 [Multiply.]
3 n = 16 ft

4 So, the actual height of the bus is 16 ft.



Hence the right answer is Option C

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