There is a group of 3 people, Ajay, Raj and their teacher. The age of teacher is 1.5 times the age of ajay and raj is 5 years older than ajay. If the average age of group is 25 years, then find the ratio of ages of ajay and raj.
1
2:3
2
1:4
3
4:5
4
3:5
5
4:7