Meincraft runs all of world-generation in 4 minutes on a single-core Raspberry Pie computer. This process is 80% Parallel and 20% Serial code. Lets say you decide to upgrade to a quad-core (4 cores) version of exactly the same CPU. How long would it take to execute (best-case) the same world-generation on the new hardware? Explain your answer. (Assume no other processes are running on the system.)