$3\mathrm{.}2)$ A total of SR$14000$ is invested in r$1=8\mathrm{.}5\%$ and r$2=10\mathrm{.}5\%,$ simple interest rates. If the interest for $1$st year is SR$1190,$ how much of the SR$14000$ is invested at r$1?($You need to show your work to earn any point before choosing the answer$).$ Hint: I$=$ Prt$,$ A$=$p$(1+1$t$)$A$)7000$;B$)$ P$=8000$;C$)5000$;D$)$ None.