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Math (page 145)These are fun math riddles. All of these tricky riddles are based on real math concepts and can be solved with purely math and logic. These are the tasks listed 1441 to 1450. |
Find number abc
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If 8013b - 35a1b = bbbc0 find number abc. Multiple solutions may exist. Calculate the number 5847
. Each of the numbers can be used only once.','/archive/2021/01/29/numbermania-1611878702.png','/calculate-the-number-5847/6799'))
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
 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/2021/01/28/magic-square-1611792316.png','/MAGIC-SQUARE-Calculate-A-B-C/6798'))
The aim is to place the some numbers from the list (1, 2, 12, 21, 22, 32, 40, 41, 51, 87) 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. 
You’re in Charge of...
An Italian, an Irishman and a Chinese fellow are hired at a construction site. The manager points out a huge pile of sand and says to the Italian, "You're in charge of sweeping". To the Irishman, "You're in charge of shoveling" To the Chinese guy, "And you're in charge of supplies". "Now, I have to leave for a little while. I expect you guys to make a dent in that pile."
So the manager goes away for a couple of hours. And when he returns, the pile of sand is untouched. He says to the Italian, "Why didn't you sweep any of it?
The Italian guy replies, "I didn't have a broom. You said the Chinese guy was in charge of the supplies, but he disappeared and I couldn't find him" So then the manager turns to the Irishman and asks why he didn't shovel.
The Irishman replies, "I couldn't get myself a shovel. You left the Chinese guy in charge of supplies and I couldn't find him." The manager is really pissed now, and storms off toward the pile of Sand looking for the Chinese guy.
Just then, the Chinese guy springs out from behind the pile of sand and yells, "SUPPLIES!"
Find number abc
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If 2b89c + b8ac5 = c30c2 find number abc. Multiple solutions may exist. 
Calculate the number 3939
. Each of the numbers can be used only once.','/archive/2021/01/25/numbermania-1611533101.png','/calculate-the-number-3939/6795'))
NUMBERMANIA: Calculate the number 3939 using numbers [1, 4, 6, 6, 13, 989] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Find number abc
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If 1bbcb + 471a4 = b373c find number abc. Multiple solutions may exist. Calculate the number 537
. Each of the numbers can be used only once.','/archive/2021/01/22/numbermania-1611273901.png','/calculate-the-number-537/6792'))
NUMBERMANIA: Calculate the number 537 using numbers [4, 7, 1, 6, 60, 472] 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/2021/01/21/magic-square-1611187516.png','/MAGIC-SQUARE-Calculate-A-B-C/6791'))
The aim is to place the some numbers from the list (15, 16, 17, 24, 25, 26, 27, 28, 29, 53) 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
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If 44a8b - 3c1c8 = 8b31 find number abc. Multiple solutions may exist. Calculate the number 1933
. Each of the numbers can be used only once.','/archive/2021/01/18/numbermania-1610928301.png','/calculate-the-number-1933/6788'))
NUMBERMANIA: Calculate the number 1933 using numbers [9, 4, 7, 5, 69, 509] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. 
