Suppose $1\mathrm{.}5$GHz machine A executes $5000$ instructions in $6$s for a program P$.$ Suppose $3$GHz machine B executes $4000$ instructions in $3$s for the same program P$.$ What is the CPI for each machine? If a second program Q has the same CPI as P and takes $3$s on machine A and $4$s on machine B$,$ what is the IC of Q on each machine?