7 years ago, Paula was 3 times as old as Karl. In 2 years, Paula will be twice as old as Karl. What is the sum of their ages now?
Choose the correct choice from the following.
A) 26  B) 32  C) 38  D) 44  E) 50

Rationale: "p - 7 = 3 ( k - 7 ) and so p = 3 k - 14 p + 2 = 2 ( k + 2 ) ( 3 k - 14 ) + 2 = 2 k + 4 k = 16 p = 34 p + k = 50 the answer is e ."
Answer: E