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A flagstaff 17.5 m high casts a shadow of length 40.25 m. The height of the building, which casts a shadow of length 28.75 m under similar conditions will




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Let the height of building = h

 \frac{17.5}{40.25} = \frac{h}{28.75}  \\  \\ h= \frac{17.5}{40.25}*28.75 \\  \\ h=12.5\ m

Height of building is 12.5m
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