Question
The cost price of an item is Rs. (12n + 240). It is marked
50% above the cost price and sold after giving a discount of Rs. (4n + 80). If the profit earned is Rs. 1,600, then what is the value of 'n'?Solution
ATQ,
Marked price = 1.5 × (12n + 240) = Rs. (18n + 360)
Selling price = (18n + 360) - (4n + 80) = Rs. (14n + 280)
Profit = (14n + 280) - (12n + 240) = Rs. (2n + 40)
So, 2n + 40 = 1,600
Or, 2n = 1,560
Or, n = 780
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