If a vertical pole of length 6m casts a shadow 4m long on the ground and at the same time a tower cast a shadow 28 m long, then the height of the tower is: a)42m b)21m c)12m d)45m
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42. because......... at the same time the shadows of two objects are in the same ratio........ i.e... 6:4= X=28
amalganesh10:
this is the simplest method
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42 .. MAKE THE ON AND CROSS MULTIPLY IT
IN THIS WAY
6/4=X/28 ==CROSS MULTIPLY IT
IN THIS WAY
6/4=X/28 ==CROSS MULTIPLY IT
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