An Investment firm recommends that a client invest in bonds rated AAA, A and B. The average yield on AAA bonds is 5%, on A bond 7%, and on B Bonds 12%.the client wants to invest twice as much an AAA bonds as in B bonds. How much should be invested in each type of bond if the total investment is $24,000 and the investorwants annual return of $1,730 on the three investments