Answer:
Loss = 16.67%
Step-by-step explanation:
Assume cost price(CP) of 1 article = x
Therefore cost price of 25 articles = 25x
Given cost price of 25 article = selling price of 30 articles
Clearly, it is a loss.
Selling price(SP) of 30 articles = 25x


The given ratio for the measure of a pair of corresponding sides of similar polygon is also the same for all the sides. The perimeter, which is the sum of the measures of all the sides, will also have the same ratio. Thus, for the given above, the answer would be the third choice, 3/9 = 1/3.