If the selling price of 40 articles is equal to the cost price of 50 articles, then the percentage gain is:
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 25%.
Given that
C.P of 50 articles = S.P of 40 articles
Let the C.P of 1 article be Rs 1 and let the S.P of 1 article be x
Profit % = (Selling price- Cost price)/Cost price× 100
According to the question
50 × 1 = 40 × x
⇒ x = 1.25
Percentage increase = × 100 = 25%