The present age of A is thrice the difference between the ages of A and B. If the age of A after five years will be twice his age twenty years ago, then find the product of present ages of A and B. If ‘x’ represents the sum of the present ages A and B, then 92 ≤ x ≤ 53
1
3600
2
2700
3
1600
4
2500
5
4900