The positive difference between Sam and Lucy’s ages is b, and the sum of their ages is x. If Lucy is older than Sam, then which of the following represents Lucy’s age?  Pick:  A) (x-b)/2  B) b - x/2  C) 2b+ x  D) (x + b)/2  E) (b - x)/2
let Lucy's age be L and sam's age be S   as given,   L-S=b-- 1   L+S=x --2   adding both the equations 2L=a+z   L= (b+x)/2 answer is (x + b)/2
<result>D</result>
The positive difference between Sam and Lucy’s ages is b, and the sum of their ages is x. If Lucy is older than Sam, then which of the following represents Lucy’s age?