Answer to Question #129432 in Algebra for Rimsha Ahmed

Question

If I would have purchased 11 articles for Rs. 10 and sold all at the rate 10 for Rs. 11. The profit percent would have been;

A. 10
B. 11
C. 21
D. 100

Kindly, tell me what does the question mean and how to solve the question, please.

Thnk you.

Answer 1

cost price of 11 articles = Rs. 10

cost price of 1 article = Rs. $\frac{10}{11}$

selling price of 10 articles = Rs . 11

selling price of 1 article = Rs. $\frac{11}{10}$

since selling price > cost price , there is profit

profit per article = selling price - cost price

= Rs. $\frac{11}{10}$ - Rs.$\frac{10}{11}$

= Rs.$\frac{121-100}{110}$

= Rs.$\frac{21}{110}$

Profit on 11 articles = $\frac{21}{110}$x11 = Rs. 2.1

profit % = $\frac{profit}{costprice}$x 100%

= $\frac{2.1}{10}$x100%

=21%

correct option is C .