Apple sold 3 million iPad 4 & iPad minis in the first 3 days

"Apple® today announced it has sold three million iPads in just three days since the launch of its new iPad® mini and fourth generation iPad—double the previous first weekend milestone of 1.5 million Wi-Fi only models sold for the third generation iPad in March. The Wi-Fi + Cellular versions of both iPad mini and fourth generation iPad will ship in a few weeks in the US and in many more countries later this year.
[...]
Both iPad mini and the new fourth generation iPad with Retina display are available in 34 countries including the US, Australia, Canada, France, Germany, Hong Kong, Japan, South Korea and the UK, and will be available in many more countries later this year, including mainland China. Demand for iPad mini exceeded the initial supply and while many of the pre-orders have been shipped to customers, some are scheduled to be shipped later this month."
Source:  Press release from Apple, 5th November 2012
Note - it's interesting that they're not breaking down the figures between the two very different models