in a ship of length 28 metres. height of its mast is 12 m .if the hight of the mast of its model is 9 cm what is the length of the model ship
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the answer is 21 m
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Madhuganesh:
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a vertical pole of 5.6 metres height cast a shadow 3.2 M long. at the same time find (I) the length of the shadow cast by another pole 10.5 M height (ii) the height of the pole which cast a shadow 5 metres long
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1) 5.6/3.2=10.5/x cross multiply 5.6x=3.2×10.5=> 5.6x=33.6=> x=33.6/5.6=> x=6 meter
2) 5.3/3.2=x/5=> 3.2x=5.6×5=> x=28/3.2=> x=8.75meter
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Answer
The length of ship = 28m = x1
The height of ship =12 m=y1
The length of ship= x2
The height of ship= 9m = y2
X1/y1=x2/y2=28/12×x2/9=28×9/12 = 21cm
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