Distance swam in 5 minutes = 85.4 yards
Since, 1 min = 60 seconds and 1 yard = 0.91 meter
5 minutes = [tex]5 \times 60 = 300[/tex] seconds
85.4 yards = [tex]85.4 \times 0.91 = 77.7[/tex] meters
So, Distance swam in 300 seconds = 77.7 meters
Now, we will use unitary method to determine the distance swam in 70 seconds.
Distance swam in 1 second = [tex]77.7 \div 300[/tex] = 0.26 meter
So, Distance swam in 70 seconds = [tex]70 \times 0.26[/tex]
= 18.2 meters
Therefore, the swimmer took 70 seconds to cover the distance of 18.2 meters.
