hard math questions with answers

Tricky Math Questions With Answers. One day, a person went to horse racing area, Instead of counting the number of human and horses, he instead counted 74 heads and 196 legs. Question: Replace the question mark in the above problem with the appropriate number.

Yet he knew the number of humans and horses there.

This world is filled with so much content which is still unknown to most of us.

This is where things take a turn.CH has been proven independent, relative to the baseline axioms of math.

This is a quiz about general knowledge math.

29 Math Puzzles for Adults. 10 Questions | By BRANDMAN | Last updated: Jul 22, 2020 | Total Attempts: 9097 .

Hard Math Questions and Answers (Q&A) How many humans and horses were there if one day, a person went to a horse racing area. It’s one thing to describe what infinitely many groups look like, but it’s even harder to be sure the list covers everything. Math quiz thats not the easiest see if you can figure it out without a calculator!!! Many other ancient construction questions became approachable with these methods, closing off some of the oldest open math questions in history.So if you ever time-travel to ancient Greece, you can tell them their attempts at the angle trisection problem are futile.

Therefore, $k$ is $-3$.The dynamic pressure $q$ generated by a fluid moving with velocity $v$ can be found using the formula above, where $n$ is the constant density of the fluid. So buckle up, here it is: Consider the statement, “This statement cannot be proven true.”Think through every case to see why this is an example of a true, but unprovable statement. By squaring $1.5$, you can rewrite the previous equation asTherefore, the ratio of the dynamic pressure of the faster fluid isFor a polynomial $p(x)$, the value of $p(3)$ is $-2$. Substituting $2p$ for $x$ and $5r$ for $y$ in the equation $y=2x+b$ gives:Next, we can set the two equations equal to $b$ equal to each other and simplify:Finally, to find $r/p$, we need to divide both sides of the equation by $p$ and by $4$:If you picked choices A and D, you may have incorrectly formed your answer out of the coefficients in the point $(2p, 5r)$. Have fun! 28. Modern computer programs that deal with prime numbers rely on it. (a) 42 (b) 52 (c) 62 (d) 12 .

I am always amazed when I come across such difficult questions … There are two correct answers to this question, which are -5 and 7. She is passionate about bringing education and the tools to succeed to students from all backgrounds and walks of life, as she believes open education is one of the great societal equalizers. It can be true, and no logical contradictions follow, but it can also be false, and no logical contradictions will follow.It’s a weird state of affairs, but not completely uncommon in modern math. You may be able to find more information about this and similar content at piano.io If it’s false, then what it says is false, so then it can be proven true, which is contradictory, so this case is impossible. It’s possible to color each state (or country) on the map, following one rule: No states that share a border get the same color.The fact that any map can be colored with five colors—the Five Color Theorem—was proven in the 19th century. An aeronautical engineer users the formula to find the dynamic pressure of a fluid moving with velocity $v$ and the same fluid moving with velocity 1.5$v$. There are two different rounds – you can find the correct answers at the end of each round. Instead of counting the number … After some revisions and developments, the conjecture took the form of “Every simply-connected, closed 3-manifold is homeomorphic to S^3,” which essentially says “the simplest 4-D shape is the 4-D equivalent of a sphere.” A century later, in 2003, a Russian mathematician named Grigori Perelman posted a proof of Poincaré’s conjecture on the modern open math forum arXiv. Now that you're sure you should be attempting these questions, let's dive right in! Here’s a collection of fairly difficult maths quiz questions and answers. At any time during business hours, about how many shoppers, on average, are waiting in the checkout line to make a purchase at the Good Deals Store?Since 84 shoppers per hour make a purchase, 84 shoppers per hour enter the checkout line. These are known as the Pythagorean Triples, like (3,4,5) and (5,12,13). 24 horses … Arguably the greatest mathematical project of the 20th century, the classification of finite simple groups was orchestrated by Harvard mathematician Daniel Gorenstein, who in 1972 laid out the immensely complicated plan.By 1985, the work was nearly done, but spanned so many pages and publications that it was unthinkable for one person to peer review. On the other extreme, if it did have a proof, then that proof would prove it true … making it true that it has no proof, which is contradictory, killing this case. He made claims without proving them, leaving them to be proven by other mathematicians decades, or even centuries, later. Now, do any trios (x,y,z) satisfy x³+y³=z³? This can occur in Antarctica at negative forty degrees Celsius.

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This turned out to be a much harder question, known as If CH is true, then |ℝ| is the second infinite size, and no infinite sets are smaller than ℝ, yet larger than ℕ. Subsequent efforts were made to streamline the titanic proof to more manageable levels, and This one is as easy to state as it is hard to prove.Grab any map and four crayons.

One of the simplest facts—that there are infinitely many prime numbers—can even be adorably fit into Drawing on mid-19th-century ideas, two mathematicians, Jacques Hadamard and Charles Jean de la Vallée Poussin, independently proved the Prime Number Theorem in 1898.

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Posted by / September 11, 2020