The cost price of 8 pencils is same as the selling price of ‘x’ pencils. If a loss of 20% is incurred, what is the approximate value of ‘x’?

• A. Quantity A is greater. 
• B. Quantity B is greater. 
• C. The two quantities are equal. 
• D. The relationship cannot be determined from the information given.

Answer: B 

Explanation:

Let the price of each pen be 1 dollar.

Then the cost price of “x” pencils is “x” dollars 

Cost price of 8 pencils is 8 dollars.

Given, the selling price of “x” is 8 dollars

Loss = C.P- S.P

Loss = x – 8

\frac{C.P-S.P}{C.P}*100=20
\frac{x-8}{x}*100=20
5x-40=n

x=10

Quantity B is greater than Quantity A.

Hence the answer is B.

X