ABC - complicated question

Hi Sir, I am getting mixed up in a question re ABC: The question says that Stores Administration is $5000 pa and the cost driver is Number of Different Components. Then I have a line saying that the Number of Components = 2000 items ( Total Activity pa) However there is an additional note Each kettle uses 10 different components and will involve 6 production line set ups pa. For all the overheads I have the same thing eg dispatch = 1000 - cost driver = num of dispatches, = 20000 dispatches then further note - 500 dispatches required pa! Thanks a lot!