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Rosʜʌŋ Zane

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417. Ricardo Cardona 3
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419. Rosʜʌŋ Zane 3
420. Tóthné Kovács Judit 3
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last 3 solved tasks
If 7224b - c218c = 2aab1 find number abc. Multiple solutions may exist.
Looking at the 3 ''equations'' below, what is the answer to the 4th one? 8 + 2 = 16106; 5 + 4 = 2091; 9 + 6 = 54153; 7 + 3 = ?
If 3b7b6 - 19a3a = 11c7c find number abc. Multiple solutions may exist.

Candian patent No.1

In 1869, the Canadian patent No. 1 was issued to W. Hamilton. According to the Canadian Intellectual Property Office, the first Canadian patent, issued before the present number series, "was granted in 1791 by the Governor General in Council to Angus MacDonnel, a Scottish soldier garrisoned at Quebec City, and to Samuel Hopkins, a Vermonter, for processes to make potash and soap from wood ash." Hopkins also was granted the first U.S. patent by George Washington, dated 31 July 1790 for an improvement "in the making Pot ash and Pearl ash by a new Apparatus and Process."

A child comes home from his fi...

A child comes home from his first day at school.
His mother asks, "Well, what did you learn today?"
The kid replies, "Not enough. They want me to come back tomorrow."
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