Calculate the number 721
[6555] Calculate the number 721 - NUMBERMANIA: Calculate the number 721 using numbers [2, 4, 2, 7, 49, 231] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 10 - The first user who solved this task is Nasrin 24 T
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Calculate the number 721

NUMBERMANIA: Calculate the number 721 using numbers [2, 4, 2, 7, 49, 231] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 10
The first user who solved this task is Nasrin 24 T.
#brainteasers #math #numbermania
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I finally got one over

The other day, Louise and I got into some petty argument. (I say it was petty. She would have said it was Armageddon.) As is our nature, neither of us would admit the possibility that we might be in error.
To her credit, Louise finally said, 'Look. I'll tell you what. I'll admit I'm wrong if you admit I was right.'
'Fine.' I said.
She took a deep breath, looked me in the eye and said, 'I'm wrong.'
I grinned and replied, 'You're right.'

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Eli Whitney

Born 8 Dec 1765; died 8 Jan 1825 at age 59. American inventor, mechanical engineer, and manufacturer, who invented the cotton gin and developed the idea and methods for mass-production of interchangeable parts. The cotton gin is a machine that separates cotton fibre from the seeds. The device, patented in 1793, greatly stimulated cotton growing in the southern USA. Whitney subsequently turned to firearms manufacture, into which he introduced the notion of interchangeable parts. This he applied in his fulfilment of a US government contract (1797) to supply muskets. Whitney manufactured these in standardized parts for reassembly, meaning that for the first time worn parts could be replaced by spares rather than requiring special replacements to be made.
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