8 years ago, the ratio of As age to Bs age was 4:5. At present the

8 years ago, the ratio of As age to Bs age was 4:5. At present the ratio of Bs age to Cs age is 4:5. At present, the difference between As age and C s age is 20 years, then what is the sum of the ages of A, B and C? A. 138 years B. 122 years C. 164 years D. 148 years E. 152 (…)