Find number abc
[6625] Find number abc - If 276a3 + c07ab = 6bca1 find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 22 - The first user who solved this task is Nasrin 24 T
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Find number abc

If 276a3 + c07ab = 6bca1 find number abc. Multiple solutions may exist.
Correct answers: 22
The first user who solved this task is Nasrin 24 T.
#brainteasers #math
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Assignment Difficulty

An elementary school teacher decides to pole the class on the difficulty of last night's homework assignment:
How many people were able to complete the assignment without parents help?
About 25% of the class raises their hands. How many people we able to complete the assignment with the help of a parent? About 70% of the class raises their hand. The teacher still notices about 5% of the class did not raise their hands.
She then calls out, "How many people had to help a parent complete your assignment?

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Window envelope

In 1902, the first U.S. patent for a window envelope was issued to Americus F. Callahan of Chicago, Ill., which he called the outlook envelope (U.S. No. 701,839). He leased the patent to the Envelope company of Springfield, Mass., which began its manufacture in Jul 1902. This style of envelope was able to save expense of printing or labour of addressing, and in addition save time in preparing the message for dispatch when the customary addresses are already on the letter paper itself.
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