4. (20 points) Computer A requires 40 seconds to run a particular program. Its clock rate is 1.6 GHz. Management want to build a new computer B which will be 1.5 times faster than computer A. Engineering concludes that the quickest approach is to increase the clock rate with the understanding that it will implicate the hardware resulting in computer B requiring 1.3 times as many clock cycles for the same program comparing to computer A. Determine the target clock rate for computer B? Answer (show your work details)