If the module of a gear be m, the number of teeth T and pitch circle diameter D, then
(a) m = D/T
(b) D = T/m
(c) m = D/2T
(d) none of the mentioned
I had been asked this question in an international level competition.
My doubt stems from Toothed Gearing in chapter Toothed Gearing & Gear Trains of Machine Kinematics