Question

the selling price of 10 articles is equal to the cost price of 11 articles find the gain percent​

Answer 1

Answer:

Let CP of 1 article =Rs. 1

CP of 11 article =Rs. 11

CP of 10 article =Rs. 10

SP of 10 article =Rs. 11

Profit % =

10

11−10

×100

=10%

Answer 2

Answer:

Gain percent = 10%

Step-by-step explanation:

Let's assume that, the Cost Price of each article is Rs. x.

Therefore, the Cost Price of 11 articles is Rs. 11x

According to the problem, the Selling Price of 10 articles is Rs. 11x.

Therefore, Selling Price of each article is Rs. $\frac{11}{10} x$  

And Selling Price of 11 articles is Rs. $\frac{(11).(11)}{10} x = 12.1x$

Therefore, gain over Rs. 11x of Cost Price = Rs. (12.1x - 11x) = Rs. 1.1x

Therefore gain percent $\frac{Rs. 1.1x}{Rs. 11x} . (100)$% = 10%