An individual swims 85.4 yards in five minutes, how many meters will he/she swim in 70.0 seconds?

85.4/5

= 17.08 in a minute

then 17.08/60 = 0.28 yars per second

so 0.28*70 = 19.9 yards in 70 seconds

=18.2 meters

or

85.4 yards = 78 meters 5 mins

so 5*60=300 seconds

78/300

= 0.26 meters per second

in 70 seconds, he/she will swim 70*0.26

= 18.2meters