Show all steps. Neat hand writing. Please make sure answer is correct. I am comparing my answers and I don't want to be thrown off because of your misjudgement.

Our favorite application runs in 10 sec on Processor A, which has a 400MHz clock. We are trying to design a Processor B with faster clock rate so as to reduce the execution time to 6 sec. The Increase of clock rate will affect the rest of the CPU design, causing B to require 1.2 times as many clock cycles as Processor A for this application. What clock rate should be