Assume that we have $2\mathrm{.}75\%$ pass$-$through MBS with two mortgage

loans. Suppose that Loan A is for $$125$ and Loan B is for $$75.$ If

Loan A has a mortgage rate of $3\%$ and Loan B has a mortgage rate of

$2\mathrm{.}75\%($both rates net of servicing and G$-$fees$),$ what is the WAC of

the $2\mathrm{.}75\%$ pass$-$through MBS$?2\mathrm{.}731\%2\mathrm{.}875\%2\mathrm{.}75\%2\mathrm{.}906\%$