Question

A person would lose 20% if he sold his printer for rs 4000 for what amount should he sell it so as to gain 10%

Answer 1

He should sell it for = 5500

          working:

      4000/x = 80% (80/100)

            80x = 400000

                 x = 400000/80

                 x = 5000

         10/100 x 5000

                    = 500

     

         5000 + 500 = 5500