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These math puzzles with answers are a delightful challenge. The post 30 Math Puzzles (with Answers) to Test Your Smarts appeared first on Reader's Digest. ... RELATED: 25 Brain Teasers for Kids ...
Brain benefits: You might think the only benefit of a movie puzzle is showing off your pop culture IQ, but the truth is, these visual brain teasers help with memory and recall, too. Play Now 9.
A third collection of "brain-teasers" 1958 Sep: A game in which standard pieces composed of cubes are assembled into larger forms 1958 Oct: Four mathematical diversions involving concepts of topology: 1958 Nov: How rectangles, including squares, can be divided into squares of unequal size: 1958 Dec: Diversions which involve the five Platonic solids
The answer to the first question is 2 / 3 , as is shown correctly by the "simple" solutions. But the answer to the second question is now different: the conditional probability the car is behind door 1 or door 2 given the host has opened door 3 (the door on the right) is 1 / 2 .
There seems to be a discrepancy, as there cannot be two answers ($29 and $30) to the math problem. On the one hand it is true that the $25 in the register, the $3 returned to the guests, and the $2 kept by the bellhop add up to $30, but on the other hand, the $27 paid by the guests and the $2 kept by the bellhop add up to only $29.
Give your noggin a workout with fun brain teasers. Ranging from hard to easy, from clever wordplay to math, these thought puzzles are for all ages.