Answer :
Three feet in a yard, so there are 9 square feet (3^2) in a square yard.
As a result, it will take 1/9th of the time to mow 600 square feet.
1.5 hrs = 90 mins
1/9th of 90 mins = 10 mins
As a result, it will take 1/9th of the time to mow 600 square feet.
1.5 hrs = 90 mins
1/9th of 90 mins = 10 mins