Question

Articles are bought at 45 per dozen and sold at 85 per score. Find the gain or loss per cent.​

Answer 1

Answer:

Step-by-step explanation:

CP of 12 articles =45

CP of 1 article =1245​Rs.

SP of 20 articles =85

SP of 1 article =2085​

Profit =SP−CP

=2085​−1245​=4.25−3.75

=0.5

Profit %=3.750.5​×100=13.34%.

Answer 2

Answer:

The percentage gain is $40$%.    

Step-by-step explanation:

Given : Cost price of an article = Rs. $45$

          Selling price of an article = Rs. $85$

To find : The gain or loss percentage =?

Solution :

• It is given that the cost price of an article = Rs. $45$

                      Selling price of an article = Rs. $85$

• We have to find the gain or loss percentage.
• As we know that when selling price is greater than cost price, in such case, profit or gain is made by the person.
• To find the profit or gain, we have a formula,

       Profit = Selling Price - Cost Price

                = $85-45$

                = Rs. $40$

• Now, we have to find percentage profit or gain.
• We have a formula,

    % Gain = $\frac{Gain}{Cost price } *100$

                = $\frac{40}{45} *100$

                = $\frac{4000}{100}$

                = $40$%

• ∴ The percentage gain is $40$%.