Facts prove otherwise. It takes just 30 minutes to mow the average home lawn. Average is 10,000 square feet (929 square meters) of turfgrass. You will spend only 11 hours annually when mowing once a week during a seven-month growing season using a 19-inch (48.26 cm), walk-behind rotary (or reel) mower.acts prove otherwise. It takes just 30 minutes to mow the average home lawn. Average is 10,000 square feet (929 square meters) of turfgrass. You will spend only 11 hours annually when mowing once a week during a seven-month growing season using a 19-inch (48.26 cm), walk-behind rotary (or reel) mower.
tonne. n. 1. (Units) a unit of mass equal to 1000 kg or 2204.6 pounds. Also called (not in technical use): metric ton.
A tonne (also called metric ton) is a non-SI unit of mass, accepted for use with SI, defined as: 1 tonne = 1000 kg (= 10 6 g). âºâº Metric conversions and more. ConvertUnits.com provides an online conversion calculator for all types of measurement units.