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They’re arranged in groups of two-digit numbers; you add eight to the top two-digit number (75, 34, 68) to get the bottom number (83, 42, 76). Keeping score Math puzzle
The post 78 Riddles for Adults That Will Test Your Smarts appeared first on Reader's Digest. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290 ...
Have a fun family game night with these brain twisters! The post 37 of the Best Riddles for Teens (with Answers) appeared first on Reader's Digest.
Flow of dollars in the riddle – comparing the sum of values circled in yellow (10+10+10=30) with the sum of absolute values of those shaded yellow (9+9+9+2=29) is meaningless. The missing dollar riddle is a famous riddle that involves an informal fallacy. It dates to at least the 1930s, although similar puzzles are much older. [1]
Because the census taker knew the total (from the number on the gate) but said that he had insufficient information to give a definitive answer, there must be more than one solution with the same total. Only two sets of possible ages add up to the same totals: A. 2 + 6 + 6 = 14 B. 3 + 3 + 8 = 14
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 .
At first glance, this riddle involving various dollar amounts would lead you to think some complex math is required to solve it. There's a clear loss of $100 upfront when the money is stolen.
Four fours is a mathematical puzzle, the goal of which is to find the simplest mathematical expression for every whole number from 0 to some maximum, using only common mathematical symbols and the digit four.