Powerboattakes30minutes to travel 10miles downstream. The return triptakes50 minutes. What is th speed othe current

Answer 1

downstream speed: 10/(1/2) = 20 mi/hr
upstream speed : 10/(5/6) = 12 mi/hr

So, if te boat's speed is b and the current's speed is c,

b+c=20
b-c=12

now go figure c