Find number abc
If 740a7 + b74b0 = a3a4c7 find number abc. Multiple solutions may exist.Correct answers: 17
The first user who solved this task is Nasrin 24 T.
#brainteasers #math
Banjo clockIn 1802, Simon Willard, of Grafton, Massachusetts, patented his eight-day “Improved Timepiece,” a wall clock that came to be known as the “banjo clock.” With the advent of the Revolutionary War and subsequent problems with Great Britain on the high seas, imports had been curtailed and for the next sixty years brass and spring steel were scarce and expensive. There was need for a small inexpensive clock that could be purchased by the less affluent citizens of the new democracy. Willard recognized this need when he invented his clock. Subsequently, the early 19th century became the era of industrialization, and clockmaking, like so many other crafts, became a mechanized industry. |