Determine the value of the number ABCD
Determine the value of the number ABCDCorrect answers: 113
The first user who solved this task is Djordje Timotijevic.
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Teenage balloonistIn 1784, in Baltimore, America's first balloonist, was a teenager,13-year-old Edward Warren, who soloed in a 35-foot diameter hot-air balloon held in place from the ground with a tether. The balloon was built by Baltimore attorney, Peter Carnes. Warren volunteered for the flight after the craft was unable to lift its builder. |