MAGIC SQUARE: Calculate A+B-C
[7996] MAGIC SQUARE: Calculate A+B-C - The aim is to place the some numbers from the list (11, 15, 16, 18, 19, 20, 22, 57, 58, 60, 69) into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A+B-C. - #brainteasers #math #magicsquare - Correct Answers: 0
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MAGIC SQUARE: Calculate A+B-C

The aim is to place the some numbers from the list (11, 15, 16, 18, 19, 20, 22, 57, 58, 60, 69) into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A+B-C.
Correct answers: 0
#brainteasers #math #magicsquare
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A teacher is teaching a class...

A teacher is teaching a class and she sees that Johnny isn't paying attention, so she asks him, "If there are three ducks sitting on a fence, and you shoot one, how many are left?" Johnny says, "None." The teacher asks, "Why?" Johnny says, "Because the shot scared them all off." The teacher says, "No, two, but I like how you're thinking." Johnny asks the teacher, "If you see three women walking out of an ice cream parlor, one is licking her ice cream, one is sucking her ice cream, and one is biting her ice cream, which one is married?" The teacher says, "The one sucking her ice cream." Johnny says, "No, the one with the wedding ring, but I like how you're thinking!"
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African-American patents an ironing board

In 1892, a U.S. patent for a specialized “Ironing Board” was issued to the black American inventor, Sarah Boone, likely a former slave (No. 473,653). Her design featured a quite narrow padded board, curved to make it easier to iron sleeves. Numerous patents were issued before hers with similar titles. The first patent designated specifically as an “Ironing Table” was issued several decades earlier, in 1858, to W. Vandenburg and J. Harvey (No. 19,390). Unpatented styles evolved from long long before that, so no single inventor can be identified for the earliest ironing board. For example, J.H. Mallory's “Ironing Table,” patented 24 Oct 1871 (No. 120,296) more closely resembles today's adjustable-height, collapsible model.«
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