It is given that Jessica waxes 20 sq.meter of the floor in 3/5 of an hour.
To determine the area of the floor that waxes per hour is
3/5 of an hour is required to waxes 20 sq.meter.
1 hour is required to waxes
[tex]20\times\frac{5}{3}=\frac{100}{3}=33.3m^2[/tex]
Hence for an hour , 33.3 sq meter is waxed.
