Question

The selling price of 12 eggs is equal to the cost of 15 eggs find the gain percentage?

Answer 1

Given:

The selling price of 12 eggs is equal to the cost of 15 eggs.

To find:

The gain percentage.

Explanation:

Let us assume the cost price of 1 egg is $1.

So, the cost price of 15 eggs is $15.

According to the problem,

The selling price of 12 eggs is $15.

So, the selling price of 1 egg is,

$\frac{15}{12}=\text{ \ }1.25$

Then, the gain percentage is,

$\begin{gathered} P\%=\frac{Selling\text{ price-Cost price}}{Cost\text{ price}}\times100 \\ =\frac{1.25-1}{1}\times100 \\ =0.25\times100 \\ =25\% \end{gathered}$

Therefore, the gain percentage is 25%.

Final answer:

The gain percentage is 25%.