1
A says to B when I was of your age i was three times of your age at that time  and sum of their present ages is 64 .find present Age of A?
Ans A = 40 ,B=24


 NOW Small variation in question


2
A says to B "I am twice as old as you were when I was as old as you are". The sum of their ages is 63 years. Find the difference of their ages ?
 ans 
A =36 ,B=27
difference =9