Q$3$: A given application written in Java runs $15$ seconds on a desktop processor. A

new Java compiler is released that requires only $0\mathrm{.}6$ as many instructions as the old

compiler. Unfortunately, the new Java compiler increases the CPI by $1\mathrm{.}1.$ If you

know that the new compiler is faster than the old one:

$($a$)$ What is the CPU time for the new compiler when it runs the same Java

application?

$($b$)$ How many times the new compiler is faster than the old one?