Question

If the discount is 10% what is the MP of item brought for 9rupees

Answer 1

Let x be he marked price(MP),

$(100\% - 10\%)of \: x = 9 \\ \\ \frac{90}{100} x = 9 \\ \\ x = \frac{9 \times 100}{90} \\ \\ x = 10$

Marked price is Rs.10
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Answer 2

Let CP = Rs 100

MP = x%

Discount 10% of MP = 0.10x

SP = Rs 126

Profit = Rs 26

Facts :

MP is always markedup on CP

MP - Disc = SP

(Discount always calculated on MP)

SP - CP = Profit

Now, 126 = x - 0.10x

=> x = 1260/9 = Rs 140

=> Markup = 40% of CP

Actual MP of article = Rs 280

=> Actual CP =280/140 x 100 = Rs 200

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