Calculate the number 2670
[1680] Calculate the number 2670 - NUMBERMANIA: Calculate the number 2670 using numbers [9, 3, 1, 7, 21, 825] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 37 - The first user who solved this task is Sanja Šabović
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Calculate the number 2670

NUMBERMANIA: Calculate the number 2670 using numbers [9, 3, 1, 7, 21, 825] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 37
The first user who solved this task is Sanja Šabović.
#brainteasers #math #numbermania
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A man goes into a pet shop and...

A man goes into a pet shop and tells the owner that he wants to buy a pet that can do everything. The shop owner suggests a faithful dog.
The man replies, "Come on, a dog?"
The owner says, "How about a cat?"
The man replies, "No way! A cat certainly can't do everything. I want a pet that can do everything!"
The shop owner thinks for a minute, then says, "I've got it! A centipede!"
The man says, "A centipede? I can't imagine a centipede doing everything, but okay... I'll try a centipede."
He gets the centipede home and says to the centipede, "Clean the kitchen."
Thirty minutes later, he walks into the kitchen and... it's immaculate! All the dishes and silverware have been washed, dried, and put away; the counter-tops cleaned; the appliances sparkling; the floor waxed. He's absolutely amazed.
He says to the centipede, "Go clean the living room."
Twenty minutes later, he walks into the living room. The carpet has been vacuumed; the furniture cleaned and dusted; the pillows on the sofa plumped; plants watered. The man thinks to himself, "This is the most amazing thing I've ever seen. This really is a pet that can do everything!"
Next he says to the centipede, "Run down to the corner and get me a newspaper."
The centipede walks out the door. 10 minutes later...no centipede. 20 minutes later... no centipede. 30 minutes later...no centipede. By this point the man is wondering what's going on. So he goes to the front door, opens it... and there's the centipede sitting right outside.
The man says, "Hey!! I sent you down to the corner store 45 minutes ago to get me a newspaper. What's the matter?!"
The centipede says, "I'm goin'! I'm goin'! I'm just putting on my shoes!"
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Sewing machine

In 1857, the first practical U.S. chain-stitch sewing machine was patented by a farmer, James E. A. Gibbs of Mill Point, Va. It was a single-thread, twist-loop, rotary hook design (U.S. No. 17,427). In the same year, he formed the Willcox & Gibbs Sewing Machine Co. with James Willcox, who arranged for its manufacture. Gibbs had invented his own model out of curiosity in 1855, after seeing a newspaper illustration of a sewing machine. When Gibbs saw a tailor's Singer sewing machine, he thought it was too heavy, complicated, and expensive. Willcox and Gibbs sold their chainstitch sewing machine, on a simple iron-frame stand with treadle, for approximately $50, which was half the price of anything similar.«
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