Respuesta :

Step-by-step explanation:

The river is 1000 m wide, and the boat moves at 3 m/s, so the time it takes to cross the river is:

t = (1000 m) / (3 m/s)

t = 333.3 s

The river flows at 2 m/s, so by the time he reaches the other bank, he drifts downstream a distance of:

d = (2 m/s) (333.3 s)

d = 666.7 m