The cost price of 20 articles is the same as the cost price of x articles. If the profit is 25%, then the value of x is

# The cost price of 20 articles is the same as the cost price of x articles. If the profit is 25%, then the value of x is

1. A
15
2. B
16
3. C
18
4. D
25

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### Solution:

Concept: Using the gain percentage formula, determine the selling price in terms of cost prices. Consequently, create a linear equation in x using the question's thesis. Do the x math. In addition, you may utilize the formula for gain percentage to build a linear equation in x and then solve for x to determine the selling price in terms of cost price and x.
Given that each article's C.P. is Re, 1 C.P. of x articles equals Rs. x.
Selling pairs of x articles = Rs.20
Profit = Hence, the correct answer is option 2.

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