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The Most Difficult Tasks (page 177)puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1761 to 1770. |
Calculate the number 1120
NUMBERMANIA: Calculate the number 1120 using numbers [7, 9, 1, 8, 36, 128] 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 (15, 16, 17, 18, 19, 25, 27, 45, 46, 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 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. 
Signs of the times
On an electrician's truck, 'Let us remove your shorts.'
Outside a radiator repair shop, 'Best place in town to take a leak.'
On a maternity room door, 'Push, Push, Push.'
On a taxidermist's window, 'We really know our stuff.'
On a butcher's window, 'Let me meat your needs.'
On a fence, 'Salesmen welcome. Dog food is expensive.'
On a muffler shop, 'No appointment necessary. We'll hear you coming.'
In a dry cleaner's emporium, 'Drop your pants here.'
On a desk in a reception room, 'We shoot every 3rd salesman, and the 2nd one just left.'
In a veterinarian's waiting room, 'Be back in 5 minutes. Sit! Stay!'
In a Beauty Shop, 'Dye now!'
In a restaurant window, 'Don't stand there and be hungry, come in and get fed up.'
In a cafeteria, 'Shoes are required to eat in the cafeteria. Socks can eat any place they want.'
Calculate the number 5847
NUMBERMANIA: Calculate the number 5847 using numbers [7, 6, 3, 9, 39, 985] 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 (9, 12, 16, 22, 25, 31, 33, 34, 36, 38, 40, 42, 59) 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 1426
NUMBERMANIA: Calculate the number 1426 using numbers [8, 9, 1, 2, 43, 309] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Calculate the number 1817
NUMBERMANIA: Calculate the number 1817 using numbers [4, 4, 5, 4, 68, 475] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Calculate the number 564
NUMBERMANIA: Calculate the number 564 using numbers [8, 3, 6, 2, 64, 932] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Calculate the number 2708
NUMBERMANIA: Calculate the number 2708 using numbers [2, 1, 8, 2, 11, 904] 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 (9, 10, 14, 24, 25, 29, 34, 37, 65, 66, 70) 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.
