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8. If 25 persons can build a wall 36 m long in one day, then find the number of persons required tobuild a wall 108 m long in one day?

Answer»

Let no of persons required to dig a trench 108 m long in one day be x.persons= 25 xtrench= 36 108clearly it is a case of direct variation.25*108=36x2700=36x75=x75 persons are required

75 person are required to dig a trench



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