Select the correct answerThe 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, if we assume that 'X' is the number of articles, we can solve the problem as follows:

1. Let's denote the cost price of each article as 'C' and the number of articles as 'N'. According to the problem, C = N.

2. The total cost price of all articles is therefore C * N = N * N = N^2.

3. The selling price of all articles is given as 20.

4. A gain of 25% means that the selling price is 125% of the cost price. Therefore, we can write the equation: 20 = 1.25 * N^2.

5. Solving this equation for N (or X, if we assume X = N), we get N = sqrt(20 / 1.25) = sqrt(16) = 4.

So, if 'X' represents the number of articles, then X = 4. However, this option is not available in the given options. Therefore, the question might be incorrect or missing some information.