BRAIN TEASERS
Math (page 169)

Math (page 169)

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 1681 to 1690.
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Mathematical Puzzle: IF 6+3=...

Mathematical Puzzle: IF 6+3=39, 9+1=810 and 6+5=111 THEN 7+3=?
Correct answers: 115
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 1316

NUMBERMANIA: Calculate the number 1316 using numbers [4, 6, 6, 6, 89, 814] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 20
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #math #numbermania
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Calculate A+B+C+D

Look at the series (10, C, B, 59, A, 227, 451, 899, 1795, 3587, D, 14339, ...), determine the pattern, and find the unknown values (A, B, C and D) and calculate A+B+C+D!
Correct answers: 42
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math

Cake

Scientists have discovered a food that diminishes a woman's sex drive by up to 90%.

It's called wedding cake.

Submitted by Calamjo

Edited by Curtis

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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: 46
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math #riddles
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MAGIC SQUARE: Calculate A-B+C

The aim is to place the some numbers from the list (14, 16, 20, 23, 25, 26, 28, 29, 32, 71, 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: 17
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #math #magicsquare
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Calculate A+B*C*D

Look at the series (C, D, 48, 93, 182, 359, 712, 1417, B, 5643, 11276, A, ...), determine the pattern, and find the unknown values (A, B, C and D) and calculate A+B*C*D!
Correct answers: 35
The first user who solved this task is Nílton Corrêa de Sousa.
CHECK ANSWER
#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: 99
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 a5ab1 + 2175c = 107c47 find number abc. Multiple solutions may exist.
Correct answers: 36
The first user who solved this task is Nílton Corrêa de Sousa.
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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: 176
The first user who solved this task is Nílton Corrêa de Sousa.
CHECK ANSWER
#brainteasers #math #riddles
[link]

Can you replace the question mark with a number?

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 347
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #riddles
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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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