If (A+B) = 11, (B+C) = 9 and (C+D) = 3, what is the value of (A+D)?  Choices
A) 16 .	B) 8 .	C) 5 .	D) 2 .	E) - 2 .

Rationale: "given a + b = 11 = > a = 11 - b - - > eq 1 b + c = 9 c + d = 3 = > d = 3 - c - - > eq 2 then eqs 1 + 2 = > a + d = 11 - b + 3 - c = > 14 - ( b + c ) = > 14 - 9 = 5 . option c . . ."
Answer: C