BRAIN TEASERS
Math (page 153)

Math (page 153)

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 1521 to 1530.
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Find number abc

If b8a86 - c3bcb = 3b672 find number abc. Multiple solutions may exist.
Correct answers: 23
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math
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Calculate the number 762

NUMBERMANIA: Calculate the number 762 using numbers [1, 5, 9, 2, 49, 707] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 14
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #math #numbermania
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MAGIC SQUARE: Calculate A*B-C

The aim is to place the some numbers from the list (4, 5, 13, 14, 15, 23, 30, 31, 39, 97) 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.
Correct answers: 10
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math #magicsquare

April Fool’s Day Pranks

1. Hide food in a trash can and when someone comes by grab some and eat it.
2. Put a balloon on the tailpipe of a someone’s car so it will pop when they start their car.
3. Glue the headset of someone’s phone down to the cradle.
4. Take the door knob off a door and put it back on backwards, then lock it and leave the door open.
5. Put plastic wrap around the door frame of a commonly used door.
6. Cover a toilet seat with plastic wrap.
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Find number abc

If 71b3c - 33b1c = 3c0a0 find number abc. Multiple solutions may exist.
Correct answers: 43
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math
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Calculate the number 5187

NUMBERMANIA: Calculate the number 5187 using numbers [8, 4, 2, 5, 73, 402] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 8
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math #numbermania
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Find number abc

If acb7b + cba18 = 1aacc3 find number abc. Multiple solutions may exist.
Correct answers: 22
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math
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Calculate the number 4984

NUMBERMANIA: Calculate the number 4984 using numbers [2, 1, 9, 4, 52, 947] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 11
The first user who solved this task is Nílton Corrêa de Sousa.
CHECK ANSWER
#brainteasers #math #numbermania
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MAGIC SQUARE: Calculate A+B+C

The aim is to place the some numbers from the list (5, 7, 14, 15, 16, 25, 26, 27, 28, 29, 30) 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.
Correct answers: 11
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #magicsquare
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Find number abc

If 5c496 - a6aba = a7a94 find number abc. Multiple solutions may exist.
Correct answers: 25
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math
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Calculate the number 253

NUMBERMANIA: Calculate the number 253 using numbers [8, 2, 3, 6, 40, 156] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 11
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #numbermania
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John Philip Holland

Died 12 Aug 1914 at age 74 (born 29 Feb 1840).Irish inventor known as the “father of the modern submarine,”who designed and built the first underwater vessel accepted by the U.S. Navy. In 1873, he emigrated to the U.S. where, with financial support from the Irish Fenian Society (who hoped to use submarines against England), he built the Fenian Ram, a small sub that proved a limited success in a test run. In 1895, his J.P. Holland Torpedo Boat Company received a contract from the U.S. Navy to build a submarine, and in 1898 a successful Holland, the first truly practical submarine, was launched. The U.S. government ordered six more; similar orders came from England, Japan, and Russia. Holland's final years were marked by litigation with his financial backers.[EB gives birth date as 29 Feb. Some sources give 24 Feb.]
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