Question: 
8 years ago, the ratio of A's age to B's age was 4 :5 At present the ratio of B's age and C's age is 4 : 5 At present , the difference between A's age and C's age is 20 years, then what is the sum of the ages of A, B and C?
138 years
138 years
164 years
148 years
Answer: 
148 years
Last Updated: 
10/11/2021 - 17:00