The cost price of a particular amount of articles is same as the number of articles. Selling price of the articles comes out to be 20. Over the whole transaction 25% is gained. What is X?Options16182017

The question seems to be incomplete as it does not specify what 'X' represents. However, based on the information given, we can find out the cost price and the number of articles.

Here's how:

1. It's given that the cost price of a certain number of articles is the same as the number of articles. Let's denote this common value as 'C'. So, C is both the cost price per article and the number of articles.

2. The total cost price is therefore C * C = C^2.

3. It's also given that a 25% gain is made. This means that the selling price is 125% of the cost price. So, 1.25 * C^2 = 20.

4. Solving this equation for C, we get C = sqrt(20 / 1.25) = sqrt(16) = 4.

So, the cost price per article and the number of articles are both 4. If 'X' represents either of these quantities, then X = 4. If 'X' represents something else, we need more information to determine its value.