Calculate the number 2145
[1150] Calculate the number 2145 - NUMBERMANIA: Calculate the number 2145 using numbers [7, 3, 4, 2, 14, 680] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 34 - The first user who solved this task is Sanja Šabović
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Calculate the number 2145

NUMBERMANIA: Calculate the number 2145 using numbers [7, 3, 4, 2, 14, 680] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 34
The first user who solved this task is Sanja Šabović.
#brainteasers #math #numbermania
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The Chinese Doctor & The Lawyer

A Chinese Doctor can't find a job in a Hospital in the US, so he opens his own clinic and puts a sign outside
'GET TREATMENT FOR $20 - IF NOT CURED GET BACK $100.'
An American lawyer thinks this is a great opportunity to earn $100 and goes to the clinic.
Lawyer: 'I have lost my sense of taste.'
Chinese: 'Nurse, bring medicine from box No. 22 and put 3 drops in patient's mouth.'
Lawyer: 'Ugh. this is kerosene.'
Chinese: 'Congrats, your sense of taste is restored. Give me $20.'
The annoyed lawyer goes back after a few days to recover his money.
Lawyer: 'I have lost my memory. I cannot remember anything.'
Chinese: 'Nurse, bring medicine from box no. 22 and put 3 drops in his mouth.'
Lawyer (annoyed): 'This is kerosene. You gave this to me last time for restoring my taste.'
Chinese: 'Congrats. You got your memory back. Give me $20.'
The fuming lawyer pays him, and then comes back a week later determined to get back $100.
Lawyer: 'My eyesight has become very weak I can't see at all.'
Chinese: 'Well, I don't have any medicine for that, so take this $100.'
Lawyer (staring at the note): 'But this is $20, not $100!!'
Chinese: 'Congrats, your eyesight is restored. Give me $20'

 

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First U.S. traffic tunnel under a river

In 1866, work began on the first traffic tunnel under a U.S. river, the Washington Street Tunnel in Chicago, Illinois, under the Chicago River. It was built to alleviate traffic congestion at the river's swing bridges and opened 1 Jan 1869. It had a total length of 1,605-ft including approaches. It had a double arch with two roadways 13-ft wide by 11-ft high, and a separate footway on one side 10-ft wide by 10-ft high, reached by stairs. Cable car companies used the tunnel from the 1880's to 1906. To give a deeper draft to the river, it was replaced with a deeper tunnel in 1900, through which electric streetcar service began in 1911-12. The tunnel was closed in 1953. The world's first tunnel under a waterway was the Thames Tunnel, London, opened on 25 Mar 1843.«[Image: Washington Street Tunnel from an undated stereo viewer card.]
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