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The Most Difficult Tasks (page 135)puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1341 to 1350. |
Calculate the number 787
NUMBERMANIA: Calculate the number 787 using numbers [4, 7, 4, 7, 10, 764] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Which is a winning combination of digits?
The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot. MAGIC SQUARE: Calculate A-B-C
The aim is to place the some numbers from the list (2, 3, 9, 25, 26, 32, 45, 46, 52, 80, 82) 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. 
Little League Baseball
At one point during a game, the coach called one of his 9-year-old baseball players aside and asked, 'Do you understand what co-operation is?
What a team is?'
'Yes, coach', replied the little boy.
'Do you understand that what matters is whether we win or lose together as a team?'
The little boy nodded in the affirmative.
'So,' the coach continued, 'I'm sure you know, when an out is called, you shouldn't argue, curse, attack the umpire, or call him a pecker-head, dickhead or asshole. Do you understand all that?'
Again, the little boy nodded in the affirmative.
The coach continued, 'And when I take you out of the game so that another boy gets a chance to play, it's not good sportsmanship to call your coach a dumb ass or shithead is it?'
'No, coach.'
'Good', said the coach. 'Now go over there and explain all that to your grandmother!'
MAGIC SQUARE: Calculate A*B*C
The aim is to place the some numbers from the list (13, 15, 17, 19, 25, 29, 31, 49, 53, 55) 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. Calculate the number 547
NUMBERMANIA: Calculate the number 547 using numbers [4, 9, 2, 5, 13, 130] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. MAGIC SQUARE: Calculate A+B*C
The aim is to place the some numbers from the list (2, 11, 12, 14, 18, 19, 21, 26, 27, 29, 64, 83) 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. Find number abc
If ab2c4 - cba46 = 5a2bb find number abc. Multiple solutions may exist. Find number abc
If bb082 - a6b1c = 766a find number abc. Multiple solutions may exist. MAGIC SQUARE: Calculate A*B-C
The aim is to place the some numbers from the list (4, 8, 14, 19, 23, 29, 30, 34, 40, 61) 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. Calculate the number 8843
NUMBERMANIA: Calculate the number 8843 using numbers [2, 9, 1, 5, 22, 794] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
