To diversify her assets and with the aim
to find a supplementary income at the age of 54, Mrs Steel
buys 20 heads (growth option).
As from the 14th year (she will then be 54), and taking into account a
supposed yearly yield of 4.20 %, the livestock has grown to 30 heads.
1) She sells 2 animals a year : stock sold out in 37 years
2) She sells 3 animals a year : stock sold out in 27 years
