Sal has 210 pumpkins and eery second pumpkin is either too big or too small. Every third pumpkin is too oblong. Every fifth pumpkin is too fat. If the remaining pumpkins are perfect, how many perfect pumpkins are in Sal's pumpkin patch?

I understand that Good + Bad = 210, and Good = 210 - Bad.

I cannot define bad, as 2x, 3x, and 5x are not mutually exclusive.