BRAIN TEASERS
The Most Difficult Tasks (page 374)

The Most Difficult Tasks (page 374)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 3731 to 3740.
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Calculate the number 1993

NUMBERMANIA: Calculate the number 1993 using numbers [3, 5, 3, 9, 44, 267] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 26
The first user who solved this task is Sanja Šabović.
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#brainteasers #math #numbermania
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Calculate the number 3632

NUMBERMANIA: Calculate the number 3632 using numbers [8, 7, 7, 1, 82, 445] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 26
The first user who solved this task is Sanja Šabović.
CHECK ANSWER
#brainteasers #math #numbermania
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Calculate the number 1432

NUMBERMANIA: Calculate the number 1432 using numbers [6, 5, 8, 4, 87, 154] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 26
The first user who solved this task is Sanja Šabović.
CHECK ANSWER
#brainteasers #math #numbermania

Can't Do Without It

Duct tape is like 'The Force'...
It has a light side and a dark side, and it holds the universe together.

Jokes of the day - Daily updated jokes. New jokes every day.
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Calculate the number 224

NUMBERMANIA: Calculate the number 224 using numbers [1, 7, 6, 1, 24, 729] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 26
The first user who solved this task is Sanja Šabović.
CHECK ANSWER
#brainteasers #math #numbermania
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Calculate the number 406

NUMBERMANIA: Calculate the number 406 using numbers [3, 7, 8, 4, 27, 807] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 26
The first user who solved this task is Sanja Šabović.
CHECK ANSWER
#brainteasers #math #numbermania
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Calculate the number 2341

NUMBERMANIA: Calculate the number 2341 using numbers [7, 7, 2, 9, 83, 197] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 26
The first user who solved this task is Sanja Šabović.
CHECK ANSWER
#brainteasers #math #numbermania
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Calculate 66+935+1389

FUNNY MATH: Calculate 66+935+1389
Correct answers: 26
The first user who solved this task is Sanja Šabović.
CHECK ANSWER
#brainteasers #math
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Calculate the number 4285

NUMBERMANIA: Calculate the number 4285 using numbers [3, 6, 8, 5, 75, 356] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 26
The first user who solved this task is Sanja Šabović.
CHECK ANSWER
#brainteasers #math #numbermania
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Find the right combination

The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
Correct answers: 27
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
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Find number abc

If 8013b - 35a1b = bbbc0 find number abc. Multiple solutions may exist.
Correct answers: 27
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math
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The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
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Invention of navigation by satellite

In 1957, two Johns Hopkins University Applied Physics Laboratory scientists tracking Sputnik found they could determine its orbit by analyzing the Doppler shift of its radio signals during a single pass. They conjectured that if a satellite's position were known and predictable, then the Doppler shift of its signals could be used to locate a receiver on Earth - thus, one could navigate by satellite. A system called Transit, was developed and from 1964 assisted the security of U.S. nuclear deterrent submarines. From 1967, this evolved into a navigation system for all nations, a forerunner of the present Global Positioning System (GPS). Transit also made key contributions to space science and technology, geodesy and health.*[Image: Transit 1B satellite]
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