Answer:
Murray can swim 3/4 km downstream
Step-by-step explanation:
Since the current adds to his speed and
then subtracts the same amount, you can
disregard the current
d=r*t
Convert 15 min to hrs ( time to swim downstream )
15(1/60)=1/4 hours
d=3(1/4)
d=3/4 km downstream.
Hence Murray can swim 3/4 km downstream....