A person gains Rs.2 on product x and loses Rs.3 on product y. If he sells 8 item of x and 5 item of y, find his net profit or loss.
I have doubt in this...please clarify

Money gained on selling item x = 8*2
                                                  = Rs. 16
Money lost on selling item y = 5*3
                                              = Rs.(-15)
Profit or loss = 16+(-15)
                      = 1
Therefore, the shopkeeper incurred a profit of Rs. 1.