设AB两地的距离为X千米.由题意可得:
(2X-60):(X+60)=2:3,
2(X+60)=3(2X-60),
2X+120=6X-180,
2X+120-2X=6X-180-2X,
120=6X-2X-180,
120+180=4X-180+180,
300=4X,
X=75;
答:AB两地的距离是75千米.