Answer:
Assume return on asset is 100 million, we will use the dupont formula
ROA*(assets/equity)
Bank Y equity = 1 - 0.6= 400 million
Bank Z equity= 1-0.7 = 300 million
ROE Bank Y
(100/1000) *( 1,000/400)=100/400= 0.25 or 25%
ROE BANK Y
(100/1000)*(1000/300)=0.333 or 33%
Investor would prefer investing in Bank Y as it has a higher return on equity
Step-by-step explanation: