Calculate the number 1128
[1816] Calculate the number 1128 - NUMBERMANIA: Calculate the number 1128 using numbers [4, 5, 9, 2, 66, 139] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 40 - The first user who solved this task is Djordje Timotijevic
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Calculate the number 1128

NUMBERMANIA: Calculate the number 1128 using numbers [4, 5, 9, 2, 66, 139] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 40
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #numbermania
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The football coach walked into...

The football coach walked into the locker room before a game, looked over to his star player and said, "I'm not supposed to let you play since you failed math, but we need you in there. So, what I have to do is ask you a math question, and if you get it right, you can play."
The player agreed, and the coach looked into his eyes intently and asks, "Okay, now concentrate hard and tell me the answer to this. What is two plus two?"
The player thought for a moment and then he answered, "4?"
"Did you say 4?" the coach exclaimed, excited that he got it right.
At that, all the other players on the team began screaming, "Come on coach, give him another chance!"
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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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