Step-by-step explanation:
he split it therefore first into 2+3+5 = 10 equally large units.
so, each of these units is then 120/10 = 12 hectares.
Ben then got 2 of these units : 2×12 = 24 hectares.
Caleb got 3 of these units : 3×12 = 36 hectares.
and the 3rd brother got 5 of these units : 5×12 = 60 hectares.
Caleb got 36 hectares.