Question 78443
Since we know that Hannah and Mary Jo relate to the saleswoman and the cashier, that means Hannah and Mary Jo are not the saleswoman nor the cashier. So that means Mary Jo rides to work with Gerladine and Rose (which are either the cashier or the saleswoman and we need to figure out who is who). Since Rose is jealous of the cashier, she is not the cashier, which means she is the saleswoman. This means that Gerladine is the cashier. Also since Mary Jo rides with others, she doesn't ride alone, which means she is not the shipping clerk. Since every other position is taken, she must be the stock girl. By deduction (and elimination), this means that the only position left is the shipping clerk, which is assigned to Hannah. So we have the following assignments:


Rose - Saleswoman
Gerladine - Cashier
Mary Jo - Stock Girl
Hannah - Shipping Clerk