BRAIN TEASERS
Math (page 2)

Math (page 2)

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 11 to 20.
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Calculate the number 7043

NUMBERMANIA: Calculate the number 7043 using numbers [8, 5, 6, 8, 55, 472] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
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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 (12, 13, 16, 17, 18, 20, 21, 26, 56, 57, 60, 83) 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: 0
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#brainteasers #math #magicsquare
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Find number abc

If 8b20a - c6bb1 = a04a2 find number abc. Multiple solutions may exist.
Correct answers: 0
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#brainteasers #math

Paying Extra for Good Looks

The person sitting next to me on a flight was a woman. Ever the charmer, I used one of my pick-up lines on her.
I asked, “Does the airline charge you extra for sitting next to good-looking men?”
“Yes,” she replied, “but I wasn’t willing to pay.”

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Calculate the number 1372

NUMBERMANIA: Calculate the number 1372 using numbers [2, 1, 6, 3, 56, 630] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
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#brainteasers #math #numbermania
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Find number abc

If 4c698 - a00b3 = ac64b find number abc. Multiple solutions may exist.
Correct answers: 0
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#brainteasers #math
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Calculate the number 4721

NUMBERMANIA: Calculate the number 4721 using numbers [9, 7, 6, 5, 96, 697] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
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 (3, 5, 6, 13, 15, 16, 23, 27, 45, 47, 48, 90) 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: 0
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#brainteasers #math #magicsquare
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Find number abc

If 90b77 + ab207 = 12b6cb find number abc. Multiple solutions may exist.
Correct answers: 0
CHECK ANSWER
#brainteasers #math
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Calculate the number 2343

NUMBERMANIA: Calculate the number 2343 using numbers [2, 8, 1, 4, 67, 249] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
CHECK ANSWER
#brainteasers #math #numbermania
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Find number abc

If 44c64 + cbca5 = 1346cb find number abc. Multiple solutions may exist.
Correct answers: 0
CHECK ANSWER
#brainteasers #math
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East River Gas Tunnel

In 1892, the East River Gas Tunnel became the first completed tunnel under the East River, New York City, after two years' work. The connection was made between bores started from Long Island (26 Jun 1892) and on the New York side (10 Jul 1892). The Brooklyn Bridge over that river, opened 24 May 1883, took 13 years to build. The 2550-ft tunnel was designed to carry gas mains, not public traffic, and was built relatively smaller: 8½-ft high by 10½-ft wide. While finish work was done in the tunnel, a gas main was laid that first delivered gas on 15 Oct 1894. Illuminating gas from works on Long Island could then be distributed through Manhattan. The tunnelling success also provided practical knowledge enabling more tunnels under the East River. Work on four railroad tunnels commenced in 1904.«
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