10 pools with each 10% of the hash power find, each individually, a single solution on average every 100 minutes (1 hour and 20 minutes).
they dont
they find a solution in an average of 10 minutes..
SEPARATELY
their solution is only accepted every 10th time, due to the competition
being accepted as part of the chain.. is
different than how long it takes them to make a solution.
learn the context