BRAIN TEASERS
Math (page 2)

Math (page 2)

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 11 to 20.
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Find number abc

If 481a1 + 6cab1 = 1c8b22 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 2258

NUMBERMANIA: Calculate the number 2258 using numbers [4, 3, 8, 8, 68, 578] 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 ba443 + 14c1c = 10405a find number abc. Multiple solutions may exist.
Correct answers: 17
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #math

There were these twin sisters...

There were these twin sisters just turning one hundred years old in St. Luke's Nursing Home and the editor of the Cambridge rag, "The Cambridge Distorter," told a photographer to get over thereand take the pictures of these 100 year old twin bitteys.
One of the twins was hard of hearing and the other could hear quite well.
The photographer asked them to sit on the sofa and the deaf one said to her twin, "WHAT DID HE SAY?"
He said, "WE GOTTA SIT OVER THERE ON THE SOFA!" said the other.
"Now get a little closer together," said the cameraman.
Again, "WHAT DID HE SAY?"
"HE SAYS SQUEEZE TOGETHER A LITTLE." So they wiggled up close to each other.
"Just hold on for a bit longer, I've got to focus a little," said the photographer.
Yet again, "WHAT DID HE SAY?"
"HE SAYS HE'S GONNA FOCUS!"
With a big grin the deaf twin shouted out, "OH MY GOD - BOTH OF US?"
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Calculate the number 8214

NUMBERMANIA: Calculate the number 8214 using numbers [5, 9, 6, 8, 20, 733] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 11
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 (14, 15, 18, 19, 20, 24, 32, 33, 38, 46) 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: 12
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math #magicsquare
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Find number abc

If 41a4b + 5a720 = 950cb find number abc. Multiple solutions may exist.
Correct answers: 35
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math
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Calculate the number 4912

NUMBERMANIA: Calculate the number 4912 using numbers [7, 8, 6, 5, 97, 633] 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 a84bc + a32a6 = 1a1b66 find number abc. Multiple solutions may exist.
Correct answers: 16
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math
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Calculate the number 1815

NUMBERMANIA: Calculate the number 1815 using numbers [7, 2, 1, 6, 88, 961] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 12
The first user who solved this task is Nílton Corrêa de Sousa.
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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 (7, 9, 12, 13, 14, 18, 22, 24, 28, 42) 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: 12
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #magicsquare
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Find the ratio of the areas of two squares. Express result to the accuracy of 3 decimal.
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Aleksandr Oparin

Died 21 Apr 1980 at age 86 (born 18 Feb 1894).Russian biochemist who is noted for his studies on the origin of life from chemical matter. By drawing on the insights of chemistry, he extended the Darwinian theory of evolution backward in time to explain how simple organic and inorganic materials might have combined into complex organic compounds. In 1938, Oparin suggested that organic molecules could be formed in the presence of outside energy sources.First name seen as Alexander. Birth date 18 Feb, O.S. in EB, or 2 Mar, N.S. in DSB.
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