BRAIN TEASERS
Math (page 20)

Math (page 20)

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 191 to 200.
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Calculate the number 251

NUMBERMANIA: Calculate the number 251 using numbers [3, 2, 8, 2, 35, 143] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
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#brainteasers #math #numbermania
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Find number abc

If baa21 + 13044 = c8aba find number abc. Multiple solutions may exist.
Correct answers: 0
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#brainteasers #math
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Calculate the number 993

NUMBERMANIA: Calculate the number 993 using numbers [5, 3, 5, 6, 73, 778] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
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#brainteasers #math #numbermania

Vacation

Billy Bob and Luther were talking one afternoon when Billy Bob tells Luther, "Ya know, I reckon I'm 'bout ready for a vacation. Only this year I'm gonna do it a little different. The last few years, I took your advice about where to go.
Three years ago you said to go to Hawaii. I went to Hawaii and Earlene got pregnant.
Then two years ago, you told me to go to the Bahamas,and Earlene got pregnant again.
Last year you suggested Tahiti and darned if Earlene didn't get pregnant again."
Luther asks Billy Bob, "So, what you gonna do this year that's different?"
Billy Bob says, "This year I'm taking Earlene with me."

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MAGIC SQUARE: Calculate A*B*C

The aim is to place the some numbers from the list (2, 6, 10, 15, 19, 22, 23, 28, 63, 67, 72, 85) 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: 0
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#brainteasers #math #magicsquare
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Find number abc

If 6b425 + aca99 = c40224 find number abc. Multiple solutions may exist.
Correct answers: 0
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#brainteasers #math
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Calculate the number 2085

NUMBERMANIA: Calculate the number 2085 using numbers [2, 6, 5, 6, 87, 790] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
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#brainteasers #math #numbermania
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Find number abc

If 76a67 - b5a62 = c1aa5 find number abc. Multiple solutions may exist.
Correct answers: 0
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#brainteasers #math
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Calculate the number 5172

NUMBERMANIA: Calculate the number 5172 using numbers [1, 6, 4, 2, 45, 816] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
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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, 6, 8, 20, 21, 23, 24, 65, 66, 68, 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: 0
CHECK ANSWER
#brainteasers #math #magicsquare
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Find number abc

If 1bcca + 4bba5 = cb587 find number abc. Multiple solutions may exist.
Correct answers: 1
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#brainteasers #math
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Hermann Hellriegel

Died 24 Sep 1895 at age 63 (born 21 Oct 1831).German chemist who directed agricultural research at the Bernburg experimental Station in Prussia concerned with determining optimum conditions for growing sugar beets, the primary source of sugar. He made the important discovery of the fixation of nitrogen by certain legumes which took converted nitrogen from the air into a form in the soil accessible for organic assimilation by plants. He identified that it was due to the symbiotic action of soil bacteria in nodules on the roots of the legumes. This improvement of the soil provided particular advantage in the annual rotation of grain crops (which used up nitrogen in the soil) with legumes like beans, peas and clover (which restored nitrogen to the soil).«
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