Question

A dealer marks his goods 40% above the cost price and allows a discount of 15%.Find his profit percentage.

Answer 1

Solution: 

We know that A dealer marks his goods 40% above the cost price and allows a discount of 15%.

A percent is a ratio whose second term is 100. Percent means parts per hundred. The original price would be 100%. 

Let the cost price be = $ 100. 

Then, marked price = $ 140. 

Discount = 25% of Marked Price

Marked Price = ( $ 140 ) 

                = (25% of $ 140) 

The word "of" tells you exactly what you are looking at. Even though you can say "of" means multiplication

                = $ {140 × (25/100) 

                = $ 35. 

Selling price = (marked price (MP)) - (discount (D)) 

                = $ (140 - 35) 

                = $ 105. 

Gain% = (105 - 100) % = 5%. 

Therefore, the trader gains 5%.

Answer 2

Step-by-step explanation:

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