Answer:
There is a loss
The loss percentage is 20%
Explanation:
Here, the cost price of 25 articles is equal to the sale price of 30 articles
,So,
Cost Price of 25 = Sale Price of 30,
Then the relation can be written as,
(Cost Price)(25) = (Sale Price)(30)
Cost Price = (Sale Price)(30/25)
Cost Price = (1.2)(Sale Price)
Or,
Cost Price = 120%(Sale Price)
Hence,
The cost is greater than the amount made by selling by 20%.
Hence there is a 20% loss at sale