Some ladies can do a piece of work in 12 days. Two times the number of such ladies will do half of that work in :

Some ladies can do a piece of work in 12 days. Two times the number of such ladies will do half of that      work in :

      a) 6 days          b) 4 days         c)12 days         d) 3 days
























Expl : Let x ladies can do the work in 12 days. More ladies, less days (Indirect)

      Less work, less days (direct)

      Ladies 2x : x         Work             1 : ½  

      2x : x , 1 : ½ : : 12 : y

      :. 2x * 1*y = x* ½ *12  or y = 3

     Hence the required number of days = 3