The men's world record for swimming 1500.0 m in a long course pool (as of 2007) is 14 min 34.56 s. At this rate, how many seconds would it take to swim 0.8500.850 miles (1 mi = 1609 m) ?

797.41 s

Explanation:

0.850 mile = 1609 x. 85 m

= 1367.65 m

14 min 34.56 s

= 14 x 60 + 34.56 s

= 874.56 s

Speed of swimming = Distance / time

= 1500 / 874.56

= 1.7151 m / s

Time to swim a distance of 1367.65 m

= Distance / speed

= 1367.65 / 1.7151

= 797.41 s