Answer:
Portfolio beta= 1.50
Step-by-step explanation:
The portfolio beta is the weighted average beta which is the sum of the individual beta in the portfolio weighted according to the proportion that each individual asset value bears to the total asset value.
This is given in the relationship below
Portfolio beta = WaRa + Wb+Rb + Wn+Rn
W- weight, R- stock beta
Portfolio beta = (40,000/100,000)×0.6 + = (60,000/100,000)×2.1
=1.50
Portfolio beta= 1.50