Question

The CP of 25 articles is equal to the SP of 20 articles. Then total gain $\%$ is

• A. 25%
• B. 20%
• C. 30%
• D. 50%

Answer 1

The correct option is A 25%

Let the cost price of one article be ₹ 1.
So, the cost price of 25 article be ₹ 25.
Given, the selling price of 20 articles = cost price of 25 articles.

Hence, ₹ 25 = 20 $\times$selling price of one article.
So, the selling price of 1 article = ₹ 1.25.
$Gain\%=\frac{S.P-CP}{C.P}\times 100$
$\Rightarrow Gain\%=\frac{1.25-1}{1}\times 100=25$