X sells his goods 25\% cheaper than Y and 25\% dearer than Z. How much percentage is Z's goods cheaper than Y?

  1. A. \frac{100}{3}\%
  2. B. 40%
  3. C. 50%
  4. D. \frac{200}{3}\%

Correct Answer: B. 40%

Explanation

Let Y's price be 100. Then X's price is 75. Since X is 25\% dearer than Z, X = 1.25Z \implies 75 = 1.25Z \implies Z = 60. Z is cheaper than Y by (100-60) = 40, which is 40\% of Y's price.

Related questions on Arithmetic

Practice more CDS Elementary Mathematics questions