Mr. Kapur purchased two toy cycles for Rs. 750 each. He sold these cycles, gaining 6% on one and losing 4% on the other. The gain or loss percent in the whole transaction is = ?

Explanation:-

$$\eqalign{ & {\text{Total selling price}} \cr & = \frac{{750 \times 100}}{{100}} + \frac{{750 \times 96}}{{100}} \cr & = 795 + 720 \cr & = 1515 \cr & {\text{Profit}} = 1515 - 1500 \cr & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, = {\text{Rs}}{\text{. 5}} \cr & \therefore {\text{Profit }}\% = \frac{{15}}{{1500}} \times 100 \cr & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, = 1\% {\text{ gain}} \cr}$$