Question

7. How much percent above the cost price should a shopkeeper mark his goods so that after allowing a discount of 10% on the market price ,he earns a profit of 8%?​

Answer 1

Answer:

Let,

marked price be Rs 100

Discount=Rs(10010×100)=Rs 10

∴ Selling price Rs 90

Let east price beRs x

Profit=Rs 1008x

∴ Selling Price Rs 100108x

Now, 100108x=90

or, x=10890×100=83.33

∴ Cost price=Rs 83.33

Amount masked above CP =Rs(100−83.33)

                               =416.67

∴ Percentage of masked price above CP

                              =83.3316.67×100

                              =20%

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