Question 230570
D=RT
R=D/T
R=72/3
R=24 MPH. AGAINST THE CURRENT.
R=72/1.8
R=40 MPH. WITH THE CURRENT.
(40-24)/2=16/2=8 MPH. IS THE CURRENT.
PROOF:
40-8=32 MPH. IS THE SWIMMING SPEED OF THE WHALE IN CALM WATERS.
24+8=32 MPH. DITTO