If by selling 20 articles, a person gains a CP of 5 articles, then what is the profit percentage incurred by him.

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answer is B.

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Detailed Solution

Concept- C.P. is referred to as the cost price of a product.
S.P. stands for the selling price of a product.
If S.P. is greater than C.P., then the difference of S.P. and C.P. is known as “Profit”.
The margin of profit on C.P. is known as the “Gain Percentage” or “Profit Percentage”.
Profit = S.P. – C.P. (in case, S.P. > C.P.)
Gain Percentage =

Given,
By selling 20 articles, a person gains or makes a profit amount which is equal to the C.P. of 5 articles.
Let us consider the C.P. of an Article to be “c”.
And, the S.P. of an article to be “s”.
Then, C.P. of 20 articles = 20c
And, S.P. of 20 articles = 20s
Therefore, Profit = (20s- 20c)
But, Profit also = 5c
Therefore, Profit Percentage =

Profit Percentage =

Profit Percentage = 25%
Hence, the correct answer is 2) 25%.

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