GIVEN: By selling a TV at Rs. 25000, a dealer suffers a loss of 12%. CONCEPT: Basic concept of Profit and Loss. FORMULA USED: SP = CP × [1 – loss]/100 SP = CP × [1 + profit]/100 CALCULATION: Let the cost price of the TV be x. Now, by selling at Rs. 25000, a loss of 12% is incurred. Hence, (1–12/100)x=25000 ⇒x=25000/0.88 Now, to make a profit of 10%, he should sell it at (1+10/100)x =110/100×(25000/0.88) =Rs.31250