Question
A shopkeeper sold a smartwatch
for Rs. 7,200 and made a profit percentage equal to the profit/loss percentage that occurs when 32 earbuds are sold at the cost price of 48 earbuds. Determine the cost price of the smartwatch.Solution
ATQ, Let the cost price of 1 earbud = Rs. 10 So the cost price of 32 earbuds = Rs. 320 Selling price of 32 earbuds = Cost price of 48 pens = Rs. 480 Profit % earned = (480 – 320)/320 × 100 = 50% So the cost price of the Smartwatch = 7200/1.50 = Rs. 4,800
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