Question

If the cost price of 12 pens is equal to the selling price of 8 pens, then the gain percent is

• A. $33\frac{1}{3}\%$
• B. $66\frac{2}{3}\%$
• C. $25\%$
• D. $50\%$

Answer 1

Answer: (D)

$50\%$

solution:

Friends, we know we will need the gain amount to get gain per cent, right. So let's get gain first.

Let the cost price of 1 pen is Re 1

Cost of 8 pens = Rs 8

The selling price of 8 pens = 12

Gain = 12 - 8 = 4

%gain =$\frac{gain}{cost}$ x 100

%gain =$\frac{4}{8}$ x 100

%gain = 50%