BRAIN TEASERS
Math (page 21)

Math (page 21)

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 201 to 210.
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Calculate the number 1057

NUMBERMANIA: Calculate the number 1057 using numbers [1, 4, 6, 5, 68, 103] 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 (1, 4, 6, 9, 10, 15, 22, 25, 31, 56, 92, 95) 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 779c9 - 4b5aa = 3c3ab find number abc. Multiple solutions may exist.
Correct answers: 0
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#brainteasers #math

April Fool's Day - Suggestion

Yogurt, Peach, and Apple Disguised as an Egg and Fries
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Calculate the number 1178

NUMBERMANIA: Calculate the number 1178 using numbers [8, 2, 7, 6, 17, 255] 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 ba9cc + a696b = c09b6 find number abc. Multiple solutions may exist.
Correct answers: 1
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#brainteasers #math
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Calculate the number 960

NUMBERMANIA: Calculate the number 960 using numbers [6, 4, 3, 2, 17, 911] 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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MAGIC SQUARE: Calculate A*B*C

The aim is to place the some numbers from the list (8, 10, 16, 18, 30, 32, 38, 39, 51, 53, 59, 64, 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 cba91 + 13b91 = 9a1ba find number abc. Multiple solutions may exist.
Correct answers: 1
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#brainteasers #math
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Calculate the number 963

NUMBERMANIA: Calculate the number 963 using numbers [3, 8, 6, 8, 99, 136] 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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Find number abc

If cab78 - ba3b6 = b99cb find number abc. Multiple solutions may exist.
Correct answers: 1
CHECK ANSWER
#brainteasers #math
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Philipp Lenard

Born 7 Jun 1862; died 20 May 1947 at age 84. Philipp Eduard Anton von Lenard was a Hungarian-German physicist who received the 1905 Nobel Prize for Physics for his research on cathode rays. He discovered they could leave a cathode ray tube, penetrate thin metal sheets, and travel a short distance in the air, which would become conducting.. In 1902, he observed that a free electron (as in a cathode ray) must have at least a certain energy to ionize a gas by knocking a bound electron out of an atom. His estimate of the required ionization energy for hydrogen was remarkably accurate. Also in 1902, he showed that the photoelectric effect produces the same electrons found in cathode rays, that the photoelectrons are not merely dislodged from the metal surface but ejected with a certain amount of energy.
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