BRAIN TEASERS
Math (page 65)

Math (page 65)

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 641 to 650.
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Find number abc

If 95c80 - 8bc59 = 90a1 find number abc. Multiple solutions may exist.
Correct answers: 5
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Calculate the number 7524

NUMBERMANIA: Calculate the number 7524 using numbers [2, 8, 6, 1, 41, 947] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
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Find number abc

If b9a6b - 4c6c9 = ca928 find number abc. Multiple solutions may exist.
Correct answers: 1
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#brainteasers #math

A guy was driving when a polic...

A guy was driving when a policeman pulled him over. He rolled down his window and said to the officer, "Is there a problem, Officer?" 
"No problem at all. I just observed your safe driving and am pleased to award you a $5,000 Safe Driver Award. Congratulations. What do you think you're going to do with the money?" 
The driver thought for a minute and said, "Well, I guess I'll go get that drivers' license." The lady sitting in the passenger seat said to the policeman, "Oh, don't pay attention to him - he's a smart butt when he's drunk and stoned." The guy from the back seat said, "I TOLD you guys we wouldn't get far in a stolen car!" 
At that moment, there was a knock from the trunk and a muffled voice said, "Are we over the border yet?"
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Calculate the number 386

NUMBERMANIA: Calculate the number 386 using numbers [7, 7, 4, 3, 54, 196] 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 (5, 7, 9, 12, 14, 16, 27, 29, 31, 59, 89) 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 66acb + aaa54 = 1444aa find number abc. Multiple solutions may exist.
Correct answers: 1
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#brainteasers #math
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Calculate the number 4269

NUMBERMANIA: Calculate the number 4269 using numbers [4, 7, 7, 3, 31, 358] 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 a226b + bbb14 = 10ccaa find number abc. Multiple solutions may exist.
Correct answers: 1
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#brainteasers #math
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Calculate the number 8123

NUMBERMANIA: Calculate the number 8123 using numbers [1, 5, 5, 2, 26, 351] 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 (25, 26, 27, 28, 34, 36, 44, 45, 53, 97) 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
CHECK ANSWER
#brainteasers #math #magicsquare
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Ferdinand Braun

Born 6 Jun 1850; died 20 Apr 1918 at age 67.Karl Ferdinand Braun was a German physicist whosharedthe Nobel Prize for Physics in 1909 with Guglielmo Marconi for the development of wireless telegraphy. He published papers on deviations from Ohm's law and on the calculations of the electromotive force of reversible galvanic elements from thermal sources, and discovered (1874) the electrical rectifier effect. He demonstrated the first cathode-ray oscilloscope (Braun tube) in 1897, after work on high-frequency alternating currents. Cathode-ray tubes had previously been characterized by uncontrolled rays; Braun succeeded in producing a narrow stream of electrons, guided by means of alternating voltage, that could trace patterns on a fluorescent screen.
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