If (A+B) = 14, (B+C) = 9 and (C+D) = 3, what is the value of (A+D)?
Pick.
A) 16 . B) 8 . C) 7 . D) 2 . E) - 2 .

Rationale: "given a + b = 14 = > a = 14 - b - - > eq 1 b + c = 9 c + d = 3 = > d = 3 - c - - > eq 2 then eqs 1 + 2 = > a + d = 14 - b + 3 - c = > 17 - ( b + c ) = > 17 - 9 = 8 . option b . . ."
Answer: B