Question 191

If the cost price of 10 articles equals selling price of 9 articles, the gain or loss percent will be

Solution

Let C.P. of 1 article = 1

=> C.P. of 10 articles = 10*1 = 10

which is equal to S.P. of 9

=> S.P. of 1 item = $$\frac{10}{9}$$

=> profit % = $$\frac{\frac{10}{9}-1}{1}$$ * 100

= $$\frac{100}{9}$$ = 11$$\frac{1}{9}$$%


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