D.
lets Say V1 is vol of small cargo and v2 is large cargo
r1 = v1/2.5
r2 = 2r1
x = v2/r2
x= v2/2v1/2.5
x= 5v2/4v1
v2/v1 = 4x/5 SO D
lets Say V1 is vol of small cargo and v2 is large cargo
r1 = v1/2.5
r2 = 2r1
x = v2/r2
x= v2/2v1/2.5
x= 5v2/4v1
v2/v1 = 4x/5 SO D