If the cost price of 50 articles is equal to the selling price of 25 articles, then the gain or loss...

If the cost price of 50 articles is equal to the selling price of 25 articles, then the gain or loss percent is?

Answer/Solution

100

Percentage of profit = 25/25 * 100 = 100%
Answer: E

If the cost price of articles is equal to the selling price of articles, then the gain or loss percent is?

100

In order to solve problem, you must evaluate (100 - (n₁ * 100) / n₀) / ((n₁ * 100) / n₀) * 100.

n₀ =	50
n₁ =	25

(100 - (n₁ * 100) / n₀) / ((n₁ * 100) / n₀) * 100
Evaluate n₁ * 100 = 2500
(100 - 2500 / n₀) / ((n₁ * 100) / n₀) * 100
Evaluate 2500 / n₀ = 50
(100 - 50) / ((n₁ * 100) / n₀) * 100
Evaluate 100 - 50 = 50
50 / ((n₁ * 100) / n₀) * 100
Evaluate n₁ * 100 = 2500
50 / (2500 / n₀) * 100
Evaluate 2500 / n₀ = 50
50 / 50 * 100
Evaluate 50 / 50 = 1
1 * 100
Evaluate 1 * 100 = 100
100
The answer to the problem and the result of (100 - (n₁ * 100) / n₀) / ((n₁ * 100) / n₀) * 100 is 100