Ratio between times

[Guest]

I've been thinking about it and i couldn't solve it so here is the problem , it says that:
AM:is a vertical radius , ab , ac are two chords representing two smooth rods in the circle where ac> ab . Two beads slid from rest from point A such that one bead on the chord ab to reach B after time t1 and the other bead on the chord AC to reach C after time t2 . Find the value of ratio t1:t2

And i have uploaded it in the attachment so please help

[Guest]

The two beads slide the same vertical distance so, assuming no friction, take the same time. The ratio is 1.