1.   What if the master object has 20 roll-up summary fields and a new managed package installing has 10 roll-up summer fields on the same master object?? managed package install successfully or else??

2. how many roll-up summaries can be created per object this question is for ADM 201 because I read somewhere in enterprise edition we can only create 10 roll-up summary per custom object can someone clarify this for me please