i brought 12 products. and i am getting 20% discount on it. and i am getting 1 product for free. So what is percentage of my discount?

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i brought 12 products. and i am getting 20% discount on it. and i am getting 1 product for free. So what is percentage of my total discount?

Guest Aug 20, 2015

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Best Answer

If all products are the same price p, you are paying 0.8*12p, but at full price for all 13 you would pay 13p.

So the discount is (1 - 0.8*12p/13p)*100% ≈ 26.15%

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Alan Aug 20, 2015

Alan · Answer 1 · 2015-08-20T11:39:53

If all products are the same price p, you are paying 0.8*12p, but at full price for all 13 you would pay 13p.

So the discount is (1 - 0.8*12p/13p)*100% ≈ 26.15%

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