A sells 2 TV sets at same price, one at a loss of 15% and another at a profit of 15%. Find the loss/gain percentage in the overall transaction?

Step 1: Let's assume the cost price of each TV set is $100 (for simplicity).

Step 2: When A sells the first TV set at a loss of 15%, the selling price becomes $85 (because 15$100 is $15, and$100 - $15 =$85).

Step 3: When A sells the second TV set at a profit of 15%, the selling price becomes $115 (because 15$100 is $15, and$100 + $15 =$115).

Step 4: So, the total cost price of the two TV sets is $200 ($100 + $100), and the total selling price of the two TV sets is$200 ($85 +$115).

Step 5: As the total selling price is equal to the total cost price, there is neither profit nor loss in the overall transaction. So, the loss/gain percentage in the overall transaction is 0%.