Calculate 4+20
If 1+5=18, 2+10=36, 3+15=54 then, 4+20=?Correct answers: 265
The first user who solved this task is Roxana zavari.
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Bert BenjaminBorn 17 Dec 1870; died Oct 1969 .American inventor of the Farmall tractor and the power take-off system on agricultural tractors. He held 140 patents for tractor and tractor accessories, including a cotton picker, corn shredder, and corn binder. The Farmall tractor he developed was the first tractor that could plow and cultivate row crops. Benjamin graduated from Iowa State College with a mechanical engineering degree in 1893. He became a draftsman-designer with McCormick Harvesting Machine Company, which merged with several other companies in 1902 to form the International Harvester Company (IHC), where he continued to work until 1940.«[Image: Farmall tractor, 1911] |