Question

A shopkeeper allows 15% discount and still makes 5% profit. Find the marked price of an article which costs him Rs. 340.

Answer 1

Given, cost price=Rs 340
and the percentage of profit is 5%
also given selling price= 340 + 5% × 340
                                 = 340+5/100×340
                                 = Rs 357
given marked price = 15%
then discount = 357 × 100 / 85 = Rs 420

Answer 2

The CP=340
 at profit of 5% , Sp=105X340/100=357

so after a discount of 15% , Sp=357
so , 85x/100=357
      x=420

So the MP was rs.420