BRAIN TEASERS
Math (page 157)

Math (page 157)

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 1561 to 1570.
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Find number abc

If 3a711 + 1b337 = bcca8 find number abc. Multiple solutions may exist.
Correct answers: 29
The first user who solved this task is Nasrin 24 T.
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Calculate the number 954

NUMBERMANIA: Calculate the number 954 using numbers [6, 7, 3, 4, 71, 563] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 9
The first user who solved this task is Nasrin 24 T.
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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 (18, 20, 22, 24, 26, 29, 31, 36, 40, 45, 59, 89, 93) 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: 7
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math #magicsquare

Daniel Tosh: Blaming the Amish

Am I the only person who blames global warming entirely on the Amish? Are they not a constant reminder of how awful life would be without all this great technology? Every time I want to cut back and conserve on natural resources, I just look at the Amish and I'm like, 'F**k that.'
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Find number abc

If c4a3a + 42241 = 12acbb find number abc. Multiple solutions may exist.
Correct answers: 24
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math
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Calculate the number 6748

NUMBERMANIA: Calculate the number 6748 using numbers [1, 2, 8, 9, 74, 676] 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.
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#brainteasers #math #numbermania
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Find number abc

If 276a3 + c07ab = 6bca1 find number abc. Multiple solutions may exist.
Correct answers: 22
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math
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Calculate the number 1599

NUMBERMANIA: Calculate the number 1599 using numbers [8, 2, 7, 4, 11, 150] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 9
The first user who solved this task is Nasrin 24 T.
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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 (1, 2, 4, 5, 9, 11, 14, 15, 16, 25, 83) 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: 9
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #magicsquare
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Find number abc

If a274c - 79bc3 = 31a3 find number abc. Multiple solutions may exist.
Correct answers: 20
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math
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Calculate the number 1271

NUMBERMANIA: Calculate the number 1271 using numbers [7, 2, 7, 3, 92, 938] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 8
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #numbermania
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Edison phonograph

In 1877, Thomas Alva Edison, though this date is often given as the date of a finished model of his first phonograph, may have actually only made a sketch. Some correspondence in Sep 1877 suggests Edison was at work on his ideas for what became his cylinder phonograph, though construction of a working model may not have begun until 4 Dec, according to the diary of one of Edison's aides. Indeed, Edison did not file for the patent until 24 Dec 1877. The idea came to him while working on a telegraph transmitter, when he noticed that when the tape of the machine was played at high speed, it gave off a noise resembling spoken words. After experimenting with a needle attached to the diaphragm of a telephone receiver to prick paper tape to record a message, his idea evolved to using a stylus on a tinfoil cylinder.«[Image: Sketch dated 20 Nov 1877 given to machinist John Kruesi to make the world's first cylinder phonograph.]
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