Must be your algebra . . . The answers come out nicely.
19. An investment firm offers 3 stock portfolios: A, B and C. The number
of blocks of each type of stock in each of these portfolios is as follows:
. . . . .
Suppose a client wants 26 blocks of high-risk stock,
25 blocks of moderate-risk stocks, and 29 blocks of low-risk stock.
Determine the number of each portfolio that should be suggested
to the client by solving the appropriate system of equations.
We have: .