Question
47 masons can dig a 35 m long trench in one day. How
many masons should be employed for digging a 105 m-long trench of the same type in one day?Solution
To dig a 105 m-long trench in one day: 47 masons/35=x masons/105 x = (105Γ47)/35 =47Γ4 141 masons are needed.
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