BRAIN TEASERS
Math (page 207)

Math (page 207)

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 2061 to 2070.
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Calculate the number 914

NUMBERMANIA: Calculate the number 914 using numbers [1, 5, 9, 5, 82, 544] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 21
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math #numbermania
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Find number abc

If 8c4aa - ab553 = 2b9c3 find number abc. Multiple solutions may exist.
Correct answers: 42
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math
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Calculate the number 790

NUMBERMANIA: Calculate the number 790 using numbers [9, 2, 7, 7, 16, 718] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 19
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math #numbermania

A man went to his lawyer and t...

A man went to his lawyer and told him, "My neighbor owes me $500 and he doesn't want to pay up. What should I do?"
"Do you have any proof?" asked the lawyer.
"Nope," replied the man.
"Okay, then write him a letter asking him for the $1000 he owed you," said the lawyer.
"But it's only $500," replied the man.
"Precisely. That's what he will reply and we will have the proof we need to nail him."
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MAGIC SQUARE: Calculate A-B-C

The aim is to place the some numbers from the list (11, 12, 20, 21, 22, 30, 32, 33, 41, 70, 91) 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: 23
The first user who solved this task is NĂ­lton CorrĂȘa De Sousa.
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#brainteasers #math #magicsquare
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Find number abc

If ab29c + a01cb = 12bcb7 find number abc. Multiple solutions may exist.
Correct answers: 34
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math
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Calculate the number 258

NUMBERMANIA: Calculate the number 258 using numbers [5, 5, 2, 2, 80, 560] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 14
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math #numbermania
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Find number abc

If c07c9 - bb5aa = 292b6 find number abc. Multiple solutions may exist.
Correct answers: 32
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math
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Calculate the number 555

NUMBERMANIA: Calculate the number 555 using numbers [9, 1, 5, 1, 73, 633] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 25
The first user who solved this task is Djordje Timotijevic.
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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, 3, 4, 16, 18, 19, 31, 33, 34, 72, 74, 83, 94) 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: 16
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math #magicsquare
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Find number abc

If 91c33 - cab71 = 4a8b2 find number abc. Multiple solutions may exist.
Correct answers: 44
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math
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Johann Christoph Denner

Born 13 Aug 1655; died 20 Apr 1707 at age 51.German inventor, maker of musical instruments and inventor of the clarinet. He made improvements to the chalumeau, the first true single reed instrument, of the late 1600's. He and his son Jacob are attributed with innovating the speaker key which gave the clarinet a larger register. The clarinet overblows at the 12th. That is, when playing a C without the speaker key, then add the speaker key, the note that sounds is a G, which is the interval of a twelfth. The other woodwind instruments overblow at the octave. The clarinet bore is cylindrical, whereas every other woodwind instrument has a conical bore (even the flute!). This is why the clarinet overblows at the twelfth and is so laden with overtones, which contributes to its unique sound.
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