The ratio of three numbers is 1:2:3 and the sum of their squares is 2744. The sum of the numbers is? Choose the most appropriate option:  A) 10  B) 12  C) 15  D) 14  E) 9

Rationale: "let the numbers be x , 2 x , 3 x then , x ^ 2 + 4 x ^ 2 + 9 x ^ 2 = 2744 14 x ^ 2 = 2744 x ^ 2 = 196 x = 14 answer is d"
Answer: D