Question #f9048

1 Answer
Nov 16, 2017

speed of still boat: 132=6.5mph

speed of current: 32=1.5mph

Explanation:

Let sb be the speed of the boat in still water
Let sc be the speed of the current

sbsc=204=5
sb+sc=324=8

2sb=13

sb=132=6.5mph

sc=86.5=1.5mph