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The Most Difficult Tasks (page 60)puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 591 to 600. |
Find number abc
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If 50acb - bab44 = c4487 find number abc. Multiple solutions may exist. Calculate the number 1071
. Each of the numbers can be used only once.','/archive/2024/03/29/numbermania-1711670701.png','/calculate-the-number-1071/7948'))
NUMBERMANIA: Calculate the number 1071 using numbers [4, 5, 3, 7, 25, 224] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. MAGIC SQUARE: Calculate A-B-C
 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.','/archive/2024/03/28/magic-square-1711584334.png','/MAGIC-SQUARE-Calculate-A-B-C/7947'))
The aim is to place the some numbers from the list (8, 9, 13, 16, 18, 24, 27, 29, 57, 60, 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. 
Tickets to the theater
A young couple got married and went away on their honeymoon. After two weeks they came back and finally put away all of the presents they received from friends and family. Since this was a new home, the process took some time.
A week later, they received in the mail two tickets for a popular show where tickets were impossible to get. They were very excited and warmed by the gesture of the person who sent this. Inside the envelope, however, was only a small piece of paper with a single line, "Guess who sent them."
The pair had much fun trying to identify the donor, but failed in the effort. They went to the theatre, and had a wonderful time. On their return home late at night, still trying to guess the identity of the unknown host, they found the house stripped of every article of value.
And on the bare table in the dining room was a piece of paper on which was written in the same hand as the enclosure with the tickets: "Now you know!"
Find number abc
)
If a6c5b + cc733 = b355ca find number abc. Multiple solutions may exist. 
Calculate the number 373
. Each of the numbers can be used only once.','/archive/2024/03/25/numbermania-1711325101.png','/calculate-the-number-373/7944'))
NUMBERMANIA: Calculate the number 373 using numbers [7, 9, 7, 8, 99, 288] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Calculate the number 2239
. Each of the numbers can be used only once.','/archive/2024/03/22/numbermania-1711065901.png','/calculate-the-number-2239/7941'))
NUMBERMANIA: Calculate the number 2239 using numbers [6, 2, 1, 1, 28, 735] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. MAGIC SQUARE: Calculate A*B*C
 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.','/archive/2024/03/21/magic-square-1710979519.png','/MAGIC-SQUARE-Calculate-A-B-C/7940'))
The aim is to place the some numbers from the list (3, 4, 11, 19, 20, 27, 42, 43, 50, 90) 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 3bc70 + c7c7b = a9b4b find number abc. Multiple solutions may exist. Calculate the number 3424
. Each of the numbers can be used only once.','/archive/2024/03/18/numbermania-1710720301.png','/calculate-the-number-3424/7937'))
NUMBERMANIA: Calculate the number 3424 using numbers [1, 8, 7, 2, 55, 571] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. MAGIC SQUARE: Calculate A*B*C
 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.','/archive/2024/03/14/magic-square-1710374748.png','/MAGIC-SQUARE-Calculate-A-B-C/7933'))
The aim is to place the some numbers from the list (18, 19, 21, 25, 26, 28, 45, 46, 47, 48, 53, 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. 
