When Vijay Sells 12 Pens, He Gains the Selling Price of 2 Pens. Calculate His Gain Percentage.


Question: When Vijay sells 12 pens, he gains the selling price of 2 pens. Calculate his gain percentage.

The Percentage is defined as a fraction or a ratio in which the value of the whole is always 100.

Answer: The gain percentage received by Vijay when he sells 12 pens is 20%

Gain percentage is the percentage of profit gained by Vijay 

Explanation: 

Let the selling price of one pen be Re.1

Selling price of 12 pens = 1 × 12 = Rs.12 

According to the question,

He gains selling price of 2 pens = 1 × 2 = Rs.2 

Thus, his profit amount = Rs.2

Profit or Gain = Selling price - Cost price 

Selling price = SP = Rs.12, Cost price = CP = Rs.10, Profit = Rs.2

=> 2 = 12 - CP

=> CP = 12 - 2 = 10

=> Cost price = Rs.10

WKT,

% Profit = [(SP - CP) /CP] × 100

             = [(12-10) /10] × 100

             = (2/10) × 100

             = 20%

Therefore, the gain percentage received by Vijay when he sells 12 pens is 20%