a boat traveled against the current for 70 miles for the sane time it traveled with the current for 95 miles. what was the boats average speed if the rate of the current was 5 mi/h?

Answer 1

since time = distance/speed, if the boat's speed was s, then

70/(s-5) = 95/(s+5)
s = 33

avg speed = totaldistance/totaltime
= (70+95)/(70/28 + 90/38)
= 1254/37 or 33.89 mi/hr