BRAIN TEASERS
Math (page 103)

Math (page 103)

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 1021 to 1030.
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Calculate the number 2907

NUMBERMANIA: Calculate the number 2907 using numbers [7, 3, 7, 4, 12, 979] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 2
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Find number abc

If 4bbaa - b8077 = ac045 find number abc. Multiple solutions may exist.
Correct answers: 4
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Calculate the number 1713

NUMBERMANIA: Calculate the number 1713 using numbers [6, 3, 4, 2, 54, 137] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 2
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#brainteasers #math #numbermania

Polishing Apples

A young man asked an old rich man how he made his money.
The old guy fingered his expensive wool vest and said, "Well, son, it was 1932. The depth of the Great Depression. I was down to my last nickel."
"I invested that nickel in an apple. I spent the entire day polishing the apple and, at the end of the day, I sold the apple for ten cents."
"The next morning, I invested those ten cents in two apples. I spent the entire day polishing them and sold them at 5:00 pm for 20 cents. I continued this system for a month, by the end of which I'd accumulated a fortune of $9.80."
"Then my wife's father died and left us two million dollars."

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MAGIC SQUARE: Calculate A*B*C

The aim is to place the some numbers from the list (14, 15, 16, 18, 19, 20, 32, 33, 34, 54, 93) 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: 4
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#brainteasers #math #magicsquare
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Find number abc

If 8b6ba - 3ac0b = cc2b6 find number abc. Multiple solutions may exist.
Correct answers: 1
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#brainteasers #math
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Calculate the number 590

NUMBERMANIA: Calculate the number 590 using numbers [9, 1, 5, 5, 58, 531] 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 ba42c - 70baa = 205a7 find number abc. Multiple solutions may exist.
Correct answers: 2
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#brainteasers #math
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Calculate the number 1242

NUMBERMANIA: Calculate the number 1242 using numbers [4, 2, 8, 4, 44, 502] 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 (17, 18, 19, 20, 21, 22, 40, 42, 44, 62) 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 ba14c - 36944 = 432a3 find number abc. Multiple solutions may exist.
Correct answers: 3
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#brainteasers #math
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Alfred Lewis Vail

Born 25 Sep 1807; died 18 Jan 1859 at age 51.American telegraph pioneer and an associate and financial backer of Samuel F.B. Morse in the experimentation that made the telegraph a commercial reality. The final form of the Morse code was perfected by Vail who simplified the whole process by introducing the telegraph key. Vail is responsible for the efficiency of the code, using the principle that the most frequently sent letters should have the shortest code.
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