Question

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

Answer 1

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