Question

The cost price of 10 articles is equal to the selling price of 9 articles. Find the gain per cent.

Answer 1

C. P. Of 10 is equal to S. P. Of 9
So, C. P. =9
S. P. =10
Gain=S.P.-C.P.
= 10-9=1

GAIN%=GAIN ×100÷C.P.
=1×100/9
=100÷9=11.111

Answer 2

Step-by-step explanation:

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.

Hope it will help you. Thanks.

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