The puzzle above should be an easy one if you follow the order of operations. The answer should be C: 50. If you wanted to rewrite the equation to make it a little easier to understand, you could add some parentheses to make it:
Which can then be simplified by taking care of the division and multiplication to yield:
or, removing parentheses:
Which one can then easily see is equal to 50:
As I mentioned in a recent post, those bits of text people keep adding to these puzzles suggesting that they're "only for geniuses" or that only some percentage of people get them right are absolutely bogus. Anyone can get the right answer if they understand what the puzzle is looking for and are willing to spend enough time working for it. Also, it's highly unlikely for most of these problems that there has been a significant portion of the population who've been tested with these problems to be able to make statistical statements about the likelihood of finding the answer. Still, I love puzzles and math problems, so I can't help myself. Take this one, for instance:
Trova la soluzione is Italian for "find the solution". I don't speak Italian, but in these glorious days of online information accessibility, we pretty much have Star Trek's universal translator at our fingertips whenever we're online.
Were you able to figure out the answer for the problem above? It's another that's pretty easy once you figure out the operation that the problem wants you to apply to each line. In this case, the final answer should be 126. If you start by adding the numbers on the left side of each equation, you should quickly see that there's a connection between that sum and the number on the right. In the first line, 2 plus 3 gives you 5 which can be multiplied by 2 to get 10. In the second line, 8 plus 4 gives you 12 which can then be multiplied by 8 to get 96. So, it pops out pretty quickly that you have to add the two numbers on the left and then multiply that sum by the first number on the left. Pretty simple, right?