There are three runners Ahaan, Bhavesh, and Chetan.

Each runs with a different uniform speed in a 1000 meters race.

If Ahaan gives Bhavesh a start of 50 meters, they will finish the race at the same time.

If Ahaan gives Chetan a start of 69 meters, they will finish the race at the same time.

Suppose Bhavesh and Chetan are in a race.

How much of a start should Bhavesh give to Chetan so they would finish the race at the same time?