At present, A is thrice as old as B. C is 5 years elder than B. The sum of the ages of A, B, and C is 75 years. What is the ratio of the age of B five...
Question
At present, A is thrice as old as B. C is 5 years elder than B. The sum of the ages of A, B, and C is 75 years. What is the ratio of the age of B five years ago to the age of A three years from now?