Answer:
The options are
A.9.6
B.4.8
C.10.4
D.20.83
The gross income multiplier (GIM) is known as the ratio of sale price to the gross annual rental income and helps in determining the value of an investment.
GIM= Sale price/ Annual Rental income
Sale price =$350,000
Annual rent income for the two unit of duplex = 12*2*$1400
GIM = $350,000/(12*2*$1400) ≈ 10.4