BRAIN TEASERS
Math (page 72)

Math (page 72)

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 711 to 720.
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MAGIC SQUARE: Calculate A*B-C

The aim is to place the some numbers from the list (21, 22, 24, 25, 26, 27, 39, 42, 44, 48, 51) 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: 1
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Find number abc

If 73ac6 + bbc63 = 161a69 find number abc. Multiple solutions may exist.
Correct answers: 4
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Calculate the number 1380

NUMBERMANIA: Calculate the number 1380 using numbers [5, 4, 1, 2, 35, 196] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
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#brainteasers #math #numbermania

A guy is sitting at a bar ...

A guy is sitting at a bar in a skyscraper restaurant high above the city. He's slamming tequila left and right. He grabs one, drinks it, goes over to a window and jumps out. The guy who was sitting next to him couldn't believe that the guy had just done that. He was more surprised when, ten minutes later, the same guy, unscathed, comes walking back into the bar and sits back down next to him. The astonished guy asks "How did you do that? I just saw you jump out that window and we're hundreds of feet above the GROUND!!!". The jumper responds by slurring, "Well, I don't get it either. I slam a shot of tequila and when I jump out the window, the tequila makes me slow down right before I hit the ground. Watch." He takes a shot, slams it down, goes to the window and jumps out. The other guy runs to the window and watches as the guy falls until right before the ground, slows down and lands softly on his feet. A few minutes later, the guy walks back into the bar. The other guy has to try it too, so he orders a shot of tequila. He drinks it and goes to the window and jumps. As he reaches the bottom, he doesn't slow down at all....SPLAT!!!!!! The first guy orders another shot of tequila and the bartender says to him, "You're really an jerk when you're drunk, Superman."

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Find number abc

If 6ab06 + 47cc8 = bbc334 find number abc. Multiple solutions may exist.
Correct answers: 2
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#brainteasers #math
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Calculate the number 3490

NUMBERMANIA: Calculate the number 3490 using numbers [4, 4, 6, 7, 54, 693] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
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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 (10, 12, 13, 20, 22, 23, 32, 33, 70, 72, 73) 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: 1
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#brainteasers #math #magicsquare
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Find number abc

If b08b1 - 1aca7 = c13bc find number abc. Multiple solutions may exist.
Correct answers: 1
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#brainteasers #math
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Calculate the number 2223

NUMBERMANIA: Calculate the number 2223 using numbers [4, 2, 7, 7, 94, 790] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
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#brainteasers #math #numbermania
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Find number abc

If a0aaa + 77c69 = 1ba3b7 find number abc. Multiple solutions may exist.
Correct answers: 2
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#brainteasers #math
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Calculate the number 6944

NUMBERMANIA: Calculate the number 6944 using numbers [2, 5, 9, 8, 91, 444] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 2
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#brainteasers #math #numbermania
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Henry Moseley

Died 10 Aug 1915 at age 27 (born 23 Nov 1887). Henry Gwyn-Jeffreys Mosely was an English physicist who experimentally demonstrated that the major properties of an element are determined by the atomic number, not by the atomic weight, and firmly established the relationship between atomic number and the charge of the atomic nucleus. He began his research under Ernest Rutherford while serving as lecturer at the Univ. of Manchester. Using X-ray photographic techniques, he determined a mathematical relation between the radiation wavelength and the atomic numbers of the emitting elements. Moseley obtained several quantitative relationships from which he predicted the existence of three missing elements (numbers 43, 61, and 75) in the periodic table, all of which were subsequently identified. Moseley was killed in action during WW I.
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