BRAIN TEASERS
Math (page 188)

Math (page 188)

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 1871 to 1880.
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MAGIC SQUARE: Calculate A-B*C

The aim is to place the some numbers from the list (11, 12, 17, 30, 31, 36, 44, 68, 69, 74) 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.
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#brainteasers #math #magicsquare
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Find number abc

If 850a9 - 5bacb = cc6b8 find number abc. Multiple solutions may exist.
Correct answers: 20
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math
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Calculate the number 770

NUMBERMANIA: Calculate the number 770 using numbers [2, 6, 5, 5, 15, 765] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 12
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #math #numbermania

A woman goes to Spain to atten...

A woman goes to Spain to attend a 2-week, company training session. Her husband drives her to the airport and wishes her to have a good trip.
The wife answers: "Thank you honey, what would you like me to bring for you?"
The husband laughs and says: "A Spanish girl!"
The woman kept quiet and left.
Two weeks later he picks her up in the airport and asks:
"So, honey, how was the trip?"
"Very good, thank you."
"And, what happened to my present?"
"Which present?" She asked.
"The one I asked for - a Spanish girl!!"
"Oh, that," she said "Well, I did what I could; now we'll have to wait for a few months to see if it is a boy or a girl!"
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Find number abc

If 9a1c5 - a9b17 = a516c find number abc. Multiple solutions may exist.
Correct answers: 21
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math
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Calculate the number 7350

NUMBERMANIA: Calculate the number 7350 using numbers [8, 9, 3, 6, 88, 621] 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.
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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 (15, 16, 17, 25, 26, 27, 33, 54, 55, 56, 61) 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: 13
The first user who solved this task is Nílton Corrêa de Sousa.
CHECK ANSWER
#brainteasers #math #magicsquare
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Find number abc

If b1451 - 6ab3c = 1b6a1 find number abc. Multiple solutions may exist.
Correct answers: 29
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math
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Calculate the number 4708

NUMBERMANIA: Calculate the number 4708 using numbers [5, 5, 2, 5, 91, 856] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 12
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #math #numbermania
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Find number abc

If 6a9b0 - 4b404 = 1cc66 find number abc. Multiple solutions may exist.
Correct answers: 25
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math
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Calculate the number 2278

NUMBERMANIA: Calculate the number 2278 using numbers [9, 7, 4, 1, 30, 295] 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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James B. Sumner

Died 12 Aug 1955 at age 67 (born 19 Nov 1887).James Batcheller Sumner was an American biochemist who shared (with John Howard Northrop and Wendell Meredith Stanley) the 1946 Nobel Prize for Chemistry. Sumner was the first to crystallize an enzyme to show that enzymes were proteins. He learned to live one-handed from age 17, due to an accident. After earning his Ph.D. (1914), he joined the faculty of Cornell University Medical College. By 1917, he began investigating the protein nature of enzymes. It was technically difficult, taking nine years, before he produced a crystalline globulin with high urease activity in 1926. The significance of his work went unappreciated for a number of years, but by 1946, he was awarded a half-share of the Nobel Prize for Chemistry, “for his discovery that enzymes can be crystallized.” In 1947 he became director of a new laboratory for enzyme chemistry, at Cornell.«
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