Mathematical Puzzle: IF 6+3=...
Mathematical Puzzle: IF 6+3=39, 9+1=810 and 6+5=111 THEN 7+3=?Correct answers: 115
The first user who solved this task is Nasrin 24 T.
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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. |