2012 · Q58
Two numbers are in the ratio 2 : 3. If 9 is added to each number, they will be in the ratio 3 : 4. What is the product of the two numbers?
Elementary MathematicsArithmetic
- A360
- B480
- C486
- D512
Explanation
(2x+9)/(3x+9) = 3/4 gives x = 9; the numbers are 18 and 27 with product 486.