The total age of A and B is 20 years more than the total age of B and C. C is how many years younger than A.? Choose the correct choice from the following answers:
A) 20
B) 12
C) 15
D) 16
E) 10
(20+B)-(B-C)=20   20-C=20   20nswer is 20
<result>A</result>
The total age of A and B is 20 years more than the total age of B and C. C is how many years younger than A.?