The total age of A and B is 17 years more than the total age of B and C. C is how many years younger than A ?
Choose the most appropriate option.
A) 12
B) 27
C) 21
D) 17
E) 11
(A+B) - (B+C) = 17   A - C = 17.   C is younger than A by 17 years.   Answer: 17
<result>D</result>
The total age of A and B is 17 years more than the total age of B and C. C is how many years younger than A ?