What is the toughest maths question in the world?

There's no single "toughest" math question, but famously hard unsolved problems include the Collatz Conjecture, the Goldbach Conjecture, the Riemann Hypothesis, and the Navier-Stokes existence and smoothness problem, all of which involve simple concepts but resist proof, with some being part of the $1 million Millennium Prize Problems. Other contenders are challenging Olympiad problems, like one from a West German mathematician that seemed to stump everyone.

Will 3x-1 ever be solved?

The 3x + 1 problem or Collatz Conjecture, also known as the 3n + 1 problem, is a famous unsolved problem in mathematics that has puzzled mathematicians for over half a century. The problem is deceptively simple to state, but it has resisted all attempts to solve it.

What defines a "correct" answer?

A 'correct answer' is defined as a response that accurately reflects the right solution to a question, contributing to the total score in a testing scenario, as exemplified by the calculation of maximum possible correct answers in a group of questions.

Is 0.67 the same as 2/3?

You simply have to do the math. 2/3 becomes a decimal if you actually divide 2 by 3. The result will be 0.666, so about 0.67. Now, if you want to go the opposite way, knowing the place values becomes important.

What is the math code for "I love you"?

The number 371 has become popularized as a shorthand way to say “I love you” in the language of mathematics and numeric codes.

The SAT Question Everyone Got Wrong

What is 1 ➗ 0 and why?

As much as we would like to have an answer for "what's 1 divided by 0?" it's sadly impossible to have an answer. The reason, in short, is that whatever we may answer, we will then have to agree that that answer times 0 equals to 1, and that cannot be ​true, because anything times 0 is 0.

What is the answer to 11 11x11 11 only for genius?

-99 (PE)MDAS 11-11x11+11= Multiplication (11x11) = 11-121+11 ̶̶D̶̶i̶̶v̶̶i̶̶s̶̶i̶̶o̶̶n (yes, Pemdas. So the Multiplication and Division can change, And so does addition and subtraction, as its left to right.) Subtraction (11-121) =-110+11 Addition (-110+11) =-99 Therefore the answer is -99.

Who solved the $1 million math problem then disappeared?

Science history: Russian mathematician quietly publishes paper — and solves one of the most famous unsolved conjectures in mathematics — Nov. 11, 2002. Mathematician Grigori Perelman solved the Poincaré conjecture, and then rejected the $1 million prize that came with it.

What is 0.6666666667 as a fraction?

The fraction represented by the decimal 0.666666666667 is 2/3.

Should I guess b or c?

The truth is that it doesn't matter which letter you pick, only that you stick to the one you choose. The best strategy, and the one that will maximize your overall point gain, is to pick your favorite letter and fill it in for every blind guess.

Can a "correct answer" be subjective?

In brief, subjective measurement involves more than one correct answer and assesses qualitative or analytic thinking. On the other hand, objective measurement is conducted independent of opinion.