A swimmer heading directly across a river that is 200 m wide reaches the opposite bank in 6 min 40 s. During this swim, she is swept downstream 480 m. What is the speed of the current?
A) 1.4 m/s
B) 1.2 m/s
C) 0.50 m/s
D) 0.80 m/s
E) 1.8 m/s

Question

Quizplus · Accepted Answer

The swimmer is swept 480 m downstream in 6 min 40 s (400 seconds). The speed of the current is the distance swept downstream divided by the time, which is 480 m / 400 s = 1.2 m/s.

A Swimmer Heading Directly Across a River That Is 200