The portion of a pole within the earth is two third the portion above the Earth. If the length of the pole is 45 metres find its length above the earth.
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Step-by-step explanation:
let take length above the earth as X meters so according to question length within the earth would be 2/3of X meters
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Step-by-step explanation:
length of the pole = 45metres
let portion of a pole above the earth = x and portion within earth = y
given, y = 2x/3
and x+y = 45
=> x + 2x/3 = 45
=> 5x/3 = 45
=> x = 45×3/5
=> x = 27
=> y = 2×27/3 = 18
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