Question

the cp of 10 articles is equal to the sp of 9 articles. find gain or loss ​

Answer 1

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Given that the cost price of 10 articles is equal to the sale price of 9 articles.

We have to find the gain percent.

Solution:

Let the cost price of 1 article = Rs. 1

Then the cost price of 10 articles = 1 x 10 = Rs. 10

Since, given that,

Selling price of 9 articles = Cost price of 10 articles

Selling price of 9 articles = Rs. 10

Hence, we know the selling price of 9 articles.

Now we calculate the cost price of 9 articles.

Cost price of 9 articles = 1 x 9 = Rs. 9

Thus,

Profit made on the selling of 9 articles = Selling price of 9 articles - Cost price of 9 articles

Profit made on the selling of 9 articles = 10 - 9

Profit made on the selling of 9 articles = Rs. 1

% Profit or % Gain = ( Profit / Cost Price ) x 100 %

% Gain = ( 1 / 9 ) x 100 %

% Gain = 11.11 %

which is the required answer.

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