[Consumer Math - rpm and pulleys.]
Speed of pulley A = 400 rpm
{Image that I will post in the comments below.}
Speed of pulley B = ___ r.p.m.
Speed of pulley C = ___ r.p.m.
Speed of pulley D = ___ r.p.m.

Question

[Consumer Math - rpm and pulleys.]
Speed of pulley A = 400 rpm
{Image that I will post in the comments below.}
Speed of pulley B = ___ r.p.m.
Speed of pulley C = ___ r.p.m.
Speed of pulley D = ___ r.p.m.

ghostgate · Answer

attachment

ghostgate · Answer

I think that:
Speed of Pulley B = 200 rpm in similarity with Pulley C since they both rotate with like the same axis. This makes me think that Pulley D. is 40 rpm or 200 rpm as well.
Am I wrong? I need someone to check over this...

ghostgate · Answer

Well, I don't know who to tag, but I will just go off of what I think the answers are for this problem, since no one has helped me(I know, it hasn't been that much time, but I need to hurry and don't want to sit here for like an hour when I'm in a quiz.).