Mr. Lpez is deceased and wishes that the benefit of an insurance of $150 000 be invested at 3% and that of said amount his widow receive $7 500 annually, making the first payment immediately after is death, and for as long as she live. On the payment date following the death of your wife, the remainder of the fund will be given to a charity. If your wife dies 7 years 9 months later, How much money does the charity receive?