Let CP of an article sold at 50% profit = Rs 100 Then SP of an article sold at 50% profit = Rs 150 SP of an article sold at 40% loss = Rs 150 CP of an article sold at 40% loss =
100×150
60
=Rs.250 CP of both articles = Rs (100 + 250) = Rs 350 SP of both articles = Rs (150 + 150) = Rs 300 Loss % =