2020 · Q46
If the annual income of X is 20% more than that of Y, then the income of Y is less than that of X by p%. What is the value of p?
Elementary MathematicsPercentages
- A10
- B16⅔
- C17⅓
- D20
Explanation
X = 1.2Y, so Y is less than X by 0.2Y out of X = 1.2Y. That fraction is 0.2/1.2 = 1/6 = 16⅔%. Equivalently, X exceeds Y by 20% of Y.