Question

a vendor bought oranges at rupees 26 per dozen and sold them at 5 for rupees 13 what is his gain percent

Answer 1

cost per orange=26/12
sp for orange=13/5
since sp>cp
Gain=13/5-26/12
           156/60-130/60
            26/30
gain percent=(26/60)(26/12)x100
                       12/60x100
                        20percent