I. Labeled price of the articles sold was 130% of the cost price.
II. Cost price of each article was Rs. 550.
III. A discount of 10% on labeled price was offered.
I. Let C.P. be Rs. x.
III. S.P. = 90% of M.P.
Thus, from I and III, gain % can be obtained.
Clearly, II is redundant.
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