BRAIN TEASERS
Math (page 292)

Math (page 292)

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 2911 to 2920.
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Find the area of the shaded ...

Find the area of the shaded region accurate up to 3 decimal places. (a=10, b=8, c=6)
Correct answers: 122
The first user who solved this task is Roxana zavari.
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Replace the question mark with a number

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 786
The first user who solved this task is Erkain Mahajanian.
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#brainteasers #math #riddles
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MATH PUZZLE: Can you replace...

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 604
The first user who solved this task is Roxana zavari.
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#brainteasers #math #riddles

New Submarine Ensign

The new Ensign was assigned to subs, where he'd dreamed of working since a young boy.
He was trying to impress the Master Chief with his expertise learned in Submarine School.
The Master Chief cut him off quickly and said, "Listen, 'sir', it's real simple. Add the number of times we dive to the number of times we surface. Divide that number by two. If the result doesn't come out even, don't open the hatch."
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Calculate the number 1187

NUMBERMANIA: Calculate the number 1187 using numbers [8, 1, 5, 1, 51, 991] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 41
The first user who solved this task is Roxana zavari.
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#brainteasers #math #numbermania
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Can you replace the question...

Can you replace the question mark with a number?
Correct answers: 76
The first user who solved this task is Roxana zavari.
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#brainteasers #math #riddles
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What number comes next?

Look at the series (9458, 261440, 170, ...), determine the pattern, and find the value of the next number!
Correct answers: 74
The first user who solved this task is Roxana zavari.
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What will be the missing num...

What will be the missing number? (3, 5, 13, 43, 177, ?, 5353)
Correct answers: 59
The first user who solved this task is Erkain Mahajanian.
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#brainteasers #math #riddles
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MAGIC SQUARE: Calculate A-B-C

The aim is to place the some numbers from the list (6, 7, 11, 18, 19, 23, 62, 63, 65, 67) 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: 45
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math #magicsquare
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Find the area of the shaded ...

Find the area of the shaded region accurate up to 3 decimal places.
Correct answers: 69
The first user who solved this task is Erkain Mahajanian.
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#brainteasers #math
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Find number abc

If c3c8c + 4a07c = bbaa0 find number abc. Multiple solutions may exist.
Correct answers: 83
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math
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Irving Langmuir

Died 16 Aug 1957 at age 76 (born 31 Jan 1881). American physical chemist whose studies of molecular films on solid and liquid surfaces opened new fields in colloid research and biochemistry and won him the Nobel Prize for Chemistry in 1932. His early work on gases led to the invention of the Langmuir condensation pump. In 1913, Langmuir found that the life of the tungsten vacuum bulbs then in use could be extended considerably if they were filled with a mixture of nitrogen and argon. He also developed an atomic-hydrogen welding torch capable of temperatures up to 3,000°C, and made first use of the term plasma. While studying atomic structure he introduced the terms covalence and electrovalence. In surface chemistry, he worked the phenomenon of adsorption and the application of this to catalysis.
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