A is 20 years older than B. He is also 6times as old as B. Then the respective ages of A and B are

A is 20 years older than B. 5 years ago, A was 3 times as old as B. Find their present ages.

A is 16 yr older than B. 6 yr ago, A was three times as old as B. Find the present age of B.

A is 2 years older than B who is twice as old as C. If the total of the ages of A, B and C be 27 years, then how old is B?

A is two years older than B who is twice as old as C. If the total of the ages of A, B and C be 27, then how old is B?

Five years ago, A was thrice as old as B and 10 years later, A shall be twice as old as B. What are the present ages of A and B?