at a particular time the shadow of a lamp post and building are in the ratio 3:7 if the height of the building is 84 m what is the height of the lamp post
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Answer:
let,
height of the lamp = 3x , building=7x
since,
=) 7x =84
=) x =84 ÷ 7
=) x = 12
therefore,
height of the lamp = 3×12
=36
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