If Mason is now twice as old as Gunther was 5 years ago, and G is Gunther's current age in years, which of the following represents the sum of Mason and Gunther's ages 10 years from now?
Answers:
A) 3G+14	B) 3G+8	C) 3G+15	D) 3G+10	E) 3G+9
G is Gunther's current age.   Let Mason's current age be M.   given M = 2(G-5).   four years from now Mason's age will be = 2(G-5) + 10 = 2G   four years from now Gunther's age will be = G+10   Sum of ages of Mason and Gunther's after 4 years = 2G+G+10 = 3G+10   Ans : 3G+10
<result>D</result>
If Mason is now twice as old as Gunther was 5 years ago, and G is Gunther's current age in years, which of the following represents the sum of Mason and Gunther's ages 10 years from now?