BRAIN TEASERS
Math

Math

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 1 to 10.
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Find number abc

If b94c4 + c66a4 = 46068 find number abc. Multiple solutions may exist.
Correct answers: 10
The first user who solved this task is Nasrin 24 T.
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Calculate the number 4851

NUMBERMANIA: Calculate the number 4851 using numbers [5, 2, 5, 7, 79, 430] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 7
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #math #numbermania
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Find number abc

If aac11 + 50bc4 = 7b195 find number abc. Multiple solutions may exist.
Correct answers: 15
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #math

Bar Ladder

Q: Why did the blonde take a ladder into the bar?

A: She heard drinks were on the house.

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Calculate the number 2164

NUMBERMANIA: Calculate the number 2164 using numbers [2, 3, 6, 2, 25, 704] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 10
The first user who solved this task is Nasrin 24 T.
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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 (7, 8, 10, 11, 14, 17, 18, 73, 74, 80, 89) 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 a1c1b - a0910 = b0b find number abc. Multiple solutions may exist.
Correct answers: 18
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math
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Calculate the number 5329

NUMBERMANIA: Calculate the number 5329 using numbers [6, 4, 3, 8, 49, 494] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 8
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math #numbermania
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Find number abc

If ac90c - 240a9 = 3284b find number abc. Multiple solutions may exist.
Correct answers: 21
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math
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Calculate the number 1161

NUMBERMANIA: Calculate the number 1161 using numbers [9, 1, 8, 1, 66, 643] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 10
The first user who solved this task is Nasrin 24 T.
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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 (2, 4, 6, 8, 10, 12, 17, 33, 35, 37) 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 the ratio of the areas of two squares. Express result to the accuracy of 3 decimal.
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Peter Apian

Died 21 Apr 1552 at age 57 (born 16 Apr 1495).German astronomer and geographer, also known as Petrus Apianus, whose major work was Instrumentum sinuum sivi primi mobilis (1534), in which he gave tables of his calculations of sines for every minute, with a decimal division of the radius.
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