BRAIN TEASERS
Math (page 69)

Math (page 69)

These are fun math riddles. All of these tricky riddles are based on real math concepts and can be solved with purely math and logic. These are the tasks listed 681 to 690.
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Find number abc

If c6cb4 - c1a0a = 56ba find number abc. Multiple solutions may exist.
Correct answers: 4
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Calculate the number 826

NUMBERMANIA: Calculate the number 826 using numbers [3, 6, 1, 6, 86, 579] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
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Find number abc

If 4410c + 67ab0 = 111bbc find number abc. Multiple solutions may exist.
Correct answers: 7
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The Lords Prayer

Frank Perdue's lawyer was working on an inspired scheme to sell more chicken.
He called the Vatican and requested a private audience with the Pope.
The request was refused, but the lawyer called again and again, and finally his request was granted.
A few weeks later he was brought into a grand and stately room for an audience with His Eminence.
He knelt and kissed the Pope's ring and explained who he was and who he represented.
Then he said, 'Your Holiness, I have a proposition to make that I think could be of huge benefit to both of us.
I'd like you to change the words of the Lord's Prayer from'Give us this day our daily bread' to 'Give us this day our daily chicken.'
It will help my client sell more chickens, and we are prepared to pay the Church $1 million for this.'
The Pope shook his head firmly and said, 'No, young man, I am afraid that it is out of the question.
The words to that holy prayer have remained unchanged for 2,000 years.'
But the lawyer persisted. 'Well, Your Holiness, would you do it for $5 million?' 'No, no,' replied the Pope, 'absolutely not.
The Church holds tradition sacred and does not make changes casually.'
The lawyer stood up. 'All right, one hundred million dollars!
Would you do it for one hundred million? Think of what you could do with that money!'
The Pope reflected silently upon the starving people around the world, the far-flung missions, and the myriad of other financial burdens on the Church.
He looked over at the papal attorney before he nodded his assent. 'Please tell Mr. Perdue that we have an agreement.'
The next day, the Pope called a meeting of the College of Cardinals. 'Dearest colleagues,' the Pope began, 'I have for you some good news and some bad news. The good news is that we are receiving one hundred million from Mr. Frank Perdue to change the words of the Lord's Prayer from 'Give us this day our daily bread' to 'Give us this day our daily chicken.' 'The bad news, friends, is that we're losing the Wonder Bread account.'

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Calculate the number 1045

NUMBERMANIA: Calculate the number 1045 using numbers [4, 4, 1, 9, 33, 451] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
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MAGIC SQUARE: Calculate A*B*C

The aim is to place the some numbers from the list (4, 8, 9, 10, 11, 18, 19, 33, 35, 43) 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: 1
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#brainteasers #math #magicsquare
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Find number abc

If 77bca - 7447c = b7ac find number abc. Multiple solutions may exist.
Correct answers: 2
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#brainteasers #math
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Calculate the number 6204

NUMBERMANIA: Calculate the number 6204 using numbers [4, 7, 5, 1, 26, 860] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
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#brainteasers #math #numbermania
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Find number abc

If cb3c3 + 376b9 = a894c find number abc. Multiple solutions may exist.
Correct answers: 1
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#brainteasers #math
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Calculate the number 724

NUMBERMANIA: Calculate the number 724 using numbers [5, 7, 9, 4, 32, 586] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
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#brainteasers #math #numbermania
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MAGIC SQUARE: Calculate A+B*C

The aim is to place the some numbers from the list (8, 11, 12, 18, 21, 22, 66, 69, 70, 95) 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: 1
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#brainteasers #math #magicsquare
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Prototype metre bar and kilogram mass

In 1799, the first definitive prototype metre bars (mètre des Archives) and kilograms were constructed in platinum. This followed the legal definition of the metric system by the French National Assembly on 7 Apr 1795, that was itself established during the famous measurements of the Earth's meridian between Dunkerque and Barcelona. The definitive protype replaced a provisional metre prototype bar constructed by Lenoirthat had been accepted as a standard for the metre on 9 Jun 1795. The use of a metal bar to define the standard meter continued until replaced on 14 Oct 1960 by a definition based upon a number of wavelengths of light from a certain spectroscopic light source. By 20 Oct 1983, that was replaced with a new definition based on the speed of light.«
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