RE: If a man reduces the selling price of a fan from 400 to 380 his loss increases by 20% .What is the c...
The question should be the loss increases to 20 and not loss increases by 20 as these two have two completely different meaning. the former has an answer of 500 where as the latter is undeterminable as a 20 decrease to produce 20 loss cost has to be 100.
First set cost and profit loss to be x and y respectively.x+y 400 ----(1) if selling price 380 then profit loss is increased by 20 (1.2*y) hence x+1.2y 380 -------(2).solve (1) and (2)x 500