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The Most Difficult Tasks (page 39)puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 381 to 390. |
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/2024/11/21/magic-square-1732147615.png','/MAGIC-SQUARE-Calculate-A-B-C/8185'))
The aim is to place the some numbers from the list (6, 11, 13, 14, 21, 23, 26, 29, 32, 33, 39, 63, 81) 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 a9ac7 + 990c9 = aa82bc find number abc. Multiple solutions may exist. Calculate the number 870
. Each of the numbers can be used only once.','/archive/2024/11/18/numbermania-1731888301.png','/calculate-the-number-870/8182'))
NUMBERMANIA: Calculate the number 870 using numbers [7, 5, 4, 8, 96, 290] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. 
Gone Camping
Four friends spend weeks planning the perfect lake camping and riding trip.
Two days before the group is to leave Rob's wife puts her foot down and tells him he isn't going.
Rob's friends are very upset that he can't go, but what can they do.
Two days later the three get to the camping site only to find Rob sitting there with a tent set up, firewood gathered, and supper cooking on the fire.
"Dang man, how long you been here and how did you talk your wife into letting you go?"
"Well, I've been here since yesterday. Yesterday evening I was sitting in my chair and my wife came up behind me and put her hands over my eyes and said 'guess who'?"
I pulled her hands off and she was wearing a brand new see through nightie. She took my hand and took me to our bedroom. The room had two dozen candles and rose pedals all over. She had on the bed, handcuffs and ropes! She told me to tie and cuff her to the bed and I did. And then she said, "now, you can do what ever you want."
So here I am.
Calculate the number 7594
. Each of the numbers can be used only once.','/archive/2024/11/11/numbermania-1731283501.png','/calculate-the-number-7594/8175'))
NUMBERMANIA: Calculate the number 7594 using numbers [9, 7, 8, 3, 82, 947] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. 
Find number abc
)
If 4a1cb + 52cab = 100a5a find number abc. Multiple solutions may exist. Calculate the number 1230
. Each of the numbers can be used only once.','/archive/2024/11/08/numbermania-1731024301.png','/calculate-the-number-1230/8172'))
NUMBERMANIA: Calculate the number 1230 using numbers [8, 4, 4, 2, 41, 657] 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/2024/11/07/magic-square-1730937927.png','/MAGIC-SQUARE-Calculate-A-B-C/8171'))
The aim is to place the some numbers from the list (10, 12, 13, 22, 24, 25, 38, 40, 41, 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. Find number abc
)
If 80b62 + ca8ac = b47ba find number abc. Multiple solutions may exist. Which is a winning combination of digits?
. 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.','/archive/2024/11/05/mastermind-1730765101.png','/Which-is-a-winning-combination-of-digits/8169'))
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. Calculate the number 731
. Each of the numbers can be used only once.','/archive/2024/11/04/numbermania-1730678701.png','/calculate-the-number-731/8168'))
NUMBERMANIA: Calculate the number 731 using numbers [6, 1, 9, 7, 28, 520] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. 
