2010 · Q38
Three numbers are in the ratio 3:2:5 and the sum of their squares is 1862. What are the three numbers?
Elementary MathematicsRatio and Proportion
- A18, 12, 30
- B24, 16, 40
- C15, 10, 25
- D21, 14, 35
Explanation
38k²=1862 gives k=7; numbers 21, 14, 35.