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The purchase price of 12 pencils equals to the sales price of 8 pencils. What is the rate of profit in %?

The purchase price of 12 pencils equals to the sales price of 8 pencils. What is the rate of profit in %? Correct Answer 76

Let, Purchase price of 12 pencil = Tk. x Purchase price of 1 pencil = x /12 Salse price of 8 pencil = Tk. x Salse price of 1 pencil = x/8 Profit = x/8 - x/12 = ( 3x - 2x) /24 = x/24 In the x/12 profit is Tk.x/24 In the 1 profit is Tk ( x × 12) /( 24 ×x) In the 100 profit is Tk = ( x × 12 ×100)/ ( 24 × x) = 50

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