BRAIN TEASERS
Math (page 165)

Math (page 165)

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 1641 to 1650.
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MAGIC SQUARE: Calculate A+B+C

The aim is to place the some numbers from the list (3, 4, 5, 6, 14, 15, 17, 21, 22, 24, 38, 79, 81) 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: 12
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math #magicsquare
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Find number abc

If a7970 - 29174 = c79b find number abc. Multiple solutions may exist.
Correct answers: 32
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math
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Calculate the number 6336

NUMBERMANIA: Calculate the number 6336 using numbers [4, 8, 4, 7, 96, 709] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 10
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #math #numbermania

Two fish in tank...

Two fish in tank, one turns to the other and ask, "Do you know how to drive this thinh?"
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Can you replace the question mark with a number?

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 93
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math #riddles
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Find number abc

If 7b9ba + 27b94 = c04b57 find number abc. Multiple solutions may exist.
Correct answers: 47
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math
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Calculate A*B-C+D

Look at the series (10, 19, 36, D, C, A, 520, 1033, 2058, 4107, B, 16397, ...), determine the pattern, and find the unknown values (A, B, C and D) and calculate A*B-C+D!
Correct answers: 30
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math
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Can you replace the question mark with a number?

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 97
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math #riddles
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Calculate the number 4668

NUMBERMANIA: Calculate the number 4668 using numbers [8, 5, 1, 2, 66, 349] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 13
The first user who solved this task is Nílton Corrêa de Sousa.
CHECK ANSWER
#brainteasers #math #numbermania
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MAGIC SQUARE: Calculate A+B*C

The aim is to place the some numbers from the list (15, 19, 21, 23, 25, 28, 29, 30, 71, 75, 79) 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: 11
The first user who solved this task is Nílton Corrêa de Sousa.
CHECK ANSWER
#brainteasers #math #magicsquare
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Find number abc

If 8ca83 + bb929 = c2aac2 find number abc. Multiple solutions may exist.
Correct answers: 30
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math
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James Keeler

Died 12 Aug 1900 at age 42 (born 10 Sep 1857).James Edward Keeler was an American astronomer who confirmed Maxwell's theory that the rings of Saturn were not solid (requiring uniform rotation), but composed of meteoric particles (with rotational velocity given by Kepler's 3rd law). His spectrogram of 9 Apr 1895 of the rings of Saturn showed the Doppler shift indicating variation of radial velocity along the slit. At the age of 21, he observed the solar eclipse of Jul 1878, with the Naval Observatory expedition to Colorado. He directed the Allegheny Observatory (1891-8) and the Lick Observatory from 1898, where, working with the Crossley reflector, he observed large numbers of nebulae whose existence had never before been suspected. He died unexpectedly of a stroke, age 42.«
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