BRAIN TEASERS
Math (page 126)

Math (page 126)

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 1251 to 1260.
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Find number abc

If 9baa1 - a3acc = 2502a find number abc. Multiple solutions may exist.
Correct answers: 13
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Calculate the number 4248

NUMBERMANIA: Calculate the number 4248 using numbers [2, 8, 2, 5, 32, 501] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 4
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Find number abc

If 70c93 - 27b17 = 4337a find number abc. Multiple solutions may exist.
Correct answers: 16
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#brainteasers #math

Baby, Maybe

On a visit to the zoo, a small 3 year old boy passes the stork exhibit and looks up at the birds intently.
As his family then moves on, he turns to his father and says, "Gee Daddy, they didn't even recognize me."

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Calculate the number 300

NUMBERMANIA: Calculate the number 300 using numbers [3, 4, 2, 8, 43, 173] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 5
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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 (6, 7, 11, 13, 15, 16, 20, 52, 53, 57) 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: 5
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#brainteasers #math #magicsquare
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Find number abc

If c3b95 - bb70b = 7ba9a find number abc. Multiple solutions may exist.
Correct answers: 7
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#brainteasers #math
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Calculate the number 2394

NUMBERMANIA: Calculate the number 2394 using numbers [8, 6, 1, 8, 84, 265] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 3
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#brainteasers #math #numbermania
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Find number abc

If 731a4 - 70ab0 = 2ac4 find number abc. Multiple solutions may exist.
Correct answers: 14
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#brainteasers #math
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Calculate the number 8638

NUMBERMANIA: Calculate the number 8638 using numbers [7, 3, 7, 5, 99, 815] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 3
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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, 12, 13, 14, 17, 21, 31, 32, 39) 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: 3
CHECK ANSWER
#brainteasers #math #magicsquare
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Sir Barnes Wallis

Born 26 Sep 1887; died 30 Oct 1979 at age 92. Sir Barnes Neville Wallis was an English aircraft designer and military engineer whose famous 9000-lb bouncing “dambuster” bombs of WW II destroyed the German Möhne and Eder dams on 16 May 1943. He designed the R100 airship, and the Vickers Wellesley and Wellington bombers. The specially-formed RAF 617 Squadron precisely delivered his innovative cylindrical bombs which were released from low altitude, rotating backwards at high speed that caused them to skip along the surface of the water, right up to the base of the dam. He later designed the 5-ton Tallboy and 10-ton Grand Slam earthquake bombs (which used on many enemy targets in the later years of the war). Postwar, he developed ideas for swing-wing aircraft.«[Image: Wallis at his drawing board.]
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