5. Stocks, Bonds, and a Mutual Fund Marita invested a total of
$25,000 in stocks, bonds, and a mutual fund. In one year she
earned 8% on her stock investment, 10% on her bond invest-
ment, and 6% on her mutual fund, with a total return of $1860.
Unfortunately, the amount invested in the mutual fund was
twice as large as the amount she invested in the bonds. How
much did she invest in each?
