Two workers A and B are engaged to do a work. A working alone takes 8 hours more to complete the job than if both worked toge...

Two workers A and B are engaged to do a work. A working alone takes 8 hours more to complete the job than if both worked together . If B worked along, he would need 4.5 hours more to complete the job than they both working together. What time would they take to do the work together?