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17. A shopkeeper offers his customers 10% discount and still cars a profit of 25%. What isthe actual cost of the article marked at rs 500?​

Answer»

Answer:

Discount GIVEN = 10%

So, selling price = 500 - 500*10%

                       = 500 - (500*10)/100

                       = 500 - (5*10)

                       = 500 - 50

                       = 450

Now, shopkeeper EARNS a profit of 25%

Let cost price is x

Now x + x*25% = 450

=> x + 25x/100 = 450

=> x + x/4 = 450

=> (4x + x)/4 = 450

=> 5x/4 = 450

=> 5x = 450*4

=> x = (450*4)/5

=> x = 90*4

=> x = 360

So, the actual cost of the article is RS. 360

Plz mark brainliest

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