BRAIN TEASERS
The Most Difficult Tasks (page 99)

The Most Difficult Tasks (page 99)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 981 to 990.
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MAGIC SQUARE: Calculate A*B-C

The aim is to place the some numbers from the list (3, 4, 7, 8, 12, 13, 14, 23, 27, 32, 62) 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: 1
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#brainteasers #math #magicsquare
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Find number abc

If 327b4 + 182a7 = ca971 find number abc. Multiple solutions may exist.
Correct answers: 1
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Calculate the number 5698

NUMBERMANIA: Calculate the number 5698 using numbers [3, 3, 8, 6, 93, 806] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
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#brainteasers #math #numbermania

I'm actually a very nice person

I'm actually a very nice person… Until you piss me off.
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Find number abc

If 6bcaa - aaaba = 5a690 find number abc. Multiple solutions may exist.
Correct answers: 1
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#brainteasers #math
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Calculate the number 2036

NUMBERMANIA: Calculate the number 2036 using numbers [6, 4, 3, 3, 16, 615] 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 cc544 + 2b3a5 = 1a5b49 find number abc. Multiple solutions may exist.
Correct answers: 1
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#brainteasers #math
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Calculate the number 1643

NUMBERMANIA: Calculate the number 1643 using numbers [5, 4, 6, 2, 97, 439] 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 57587 - 3c5b1 = a30ab find number abc. Multiple solutions may exist.
Correct answers: 1
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#brainteasers #math
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MAGIC SQUARE: Calculate A*B+C

The aim is to place the some numbers from the list (2, 4, 8, 29, 31, 35, 54, 55, 56, 60, 99) 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: 1
CHECK ANSWER
#brainteasers #math #magicsquare
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Find number abc

If cc358 - abc58 = 2cb00 find number abc. Multiple solutions may exist.
Correct answers: 1
CHECK ANSWER
#brainteasers #math
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Hoover Dam

In 1935, the Boulder Dam, Boulder City, Nev. was dedicated. The concrete-arch dam, subsequently named Hoover Dam (1947), supplied the first U.S. hydroelectric plant to produce a million kilowatts. This production peak occurred in June 1943, though the first of its four generators was placed into operation on 26 Oct 1936. The power serves the Los Angeles area.
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