Question

If 25 persons can dig a trench 36 m long in one day, then find the number of persons rewuired to dig a trench 108 m long in one day

Answer 1

let no of persons required to dig a trench 108 m long in one day be x.
persons= 25                           x
trench=    36                           108
clearly it is a case of direct variation.
25*108=36x
2700=36x
75=x
75 persons are required

Answer 2

here your answers.......