Question
A shopkeeper bought two televisions at a certain amount.
He sold the first television at a 30% profit and the second television at a 20% loss. If the selling price of each television is Rs. 13,000, find the overall profit/loss percentage faced by the seller in the transaction. (Correct up to two decimal places)Solution
Let the cost price of the first television be Rs. '100a' and the second television be Rs. '100b'. ATQ, 100a×1.3=100b×0.8=13,000 For the first television: 
Cost price of the first television = 100 × 100 = Rs.10,000 
Cost price of the second television=100×162.5=Rs.16,250 Total selling price: 13,000 × 2 = Rs.26,000 Total loss faced by the seller: 26,250 − 26,000 = Rs.250 Loss percentage: 
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