BRAIN TEASERS
Math (page 89)

Math (page 89)

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 881 to 890.
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MAGIC SQUARE: Calculate A*B-C

The aim is to place the some numbers from the list (2, 3, 10, 20, 21, 28, 48, 49, 56, 67, 73) 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: 2
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Find number abc

If ca1ca - 2c1bb = a700b find number abc. Multiple solutions may exist.
Correct answers: 6
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Calculate the number 1008

NUMBERMANIA: Calculate the number 1008 using numbers [2, 8, 6, 6, 81, 850] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
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When the Grim Reaper...

“When the Grim Reaper sweeps through, we have a brush with death.”

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Find number abc

If cb7cb - 47aa4 = 3cb61 find number abc. Multiple solutions may exist.
Correct answers: 2
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Calculate the number 5783

NUMBERMANIA: Calculate the number 5783 using numbers [9, 7, 8, 2, 87, 736] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
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MAGIC SQUARE: Calculate A-B+C

The aim is to place the some numbers from the list (3, 7, 12, 14, 18, 23, 27, 31, 36, 65, 71) 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: 2
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#brainteasers #math #magicsquare
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Find number abc

If 9a82b - 798ca = 1a967 find number abc. Multiple solutions may exist.
Correct answers: 3
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Calculate the number 802

NUMBERMANIA: Calculate the number 802 using numbers [4, 2, 2, 7, 98, 628] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
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Find number abc

If 20b25 - b3b0a = a0bc find number abc. Multiple solutions may exist.
Correct answers: 4
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Calculate the number 4154

NUMBERMANIA: Calculate the number 4154 using numbers [3, 2, 6, 2, 45, 814] 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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Andrea Cesalpino

Born 6 Jun 1519; died 23 Feb 1603 at age 83.Italian physician, philosopher and botanist who sought a philosophical and theoretical approach to plant classification based on unified and coherent principles rather than on alphabetical sequence or medicinal properties. He helped establish botany as an independent science. In 1555, he succeeded Luca Ghini as director of the Pisan botanic garden. His book De plantis libri XVI (1583) starts with botanical principles. Following Aristotle's division of plants into trees, shrubs, shrubby herbs, and herbs, Cesalpino's pioneering classification concentrated on fruits and seeds, neglecting broader affinities. The greater part of his book contains descriptions of about 1500 plants, but with less advice on their uses than the herbalists provided.
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