Challenge: Can you solve this math problem for middle schoolers – without a calculator?
Classic brain training methods are perhaps puzzles like crosswords or sudoku, but I have recently become more attracted to the type of challenge you’ll see below.
These puzzles have been flooding the web lately, probably because they are really fun!
These are old classic mathematical problems. When you were in middle or high school.
These math problems are more fun when you find yourself trying to remember the math you learned as a child.
Can you figure out the correct solution?
Here is the challenge, in the picture below.
At the top of the picture, we see the task and then four possible answers.
Which solution do you think is the correct one?
How did you come up with it?
Take your time and think about it to find the correct solution.
Done? Below you can check if you picked the right number!
A
B
C
The correct answer
The correct answer is B: 12.
Why is 12 the correct answer?
Well, if you remember from your school days, according to the order of operations, you do multiplication before addition and subtraction, so you start by solving 3 x 3, which results in 9.
Then we are left with a simpler math problem: 3 + 9 – 3 + 3
The answer is therefore 12.
Did you pick the correct number? Congratulations!
The Great Ketchup Debate: To Refrigerate or Not to Refrigerate?
It can be really confusing to walk through the aisles of our favorite grocery shop and figure out what food items require refrigeration and what doesn’t.
It is reasonable to believe that if a product isn’t refrigerated in stores, it also doesn’t need to be at home. That isn’t always the case, though.
A modest word in fine type can be found on the labels of many products on grocery store shelves if we look closely: “refrigerate after opening.” Sadly, not everyone takes note of this small directive, and even those who do sometimes decide to disregard it. Ketchup is an excellent illustration of this.
The popular ketchup brand, Heinz, actually advises chilling their product as soon as you bring it inside. You may be asking yourself, “But why does ketchup need to be refrigerated when I see bottles of it sitting on the store shelves?” Heinz wants you to know that it’s all for the best, though.
This ketchup conundrum intrigued me, so I decided to look into it directly. I grabbed a bottle of Heinz ketchup from my own kitchen and read the label carefully. And there it was—the warning to “For best results, refrigerate after opening”—subtly printed in small text on the label on the reverse. Thus, the recommendation is clear: refrigeration is advised.
Were you aware that Heinz addressed this issue on Twitter as well? The message on their short tweet said, “FYI: Ketchup goes in the fridge!!!” This tweet grabbed the attention of people all over social media and started a heated debate among ketchup lovers.
Heinz even went so far as to survey people about how they keep their ketchup in storage at home. The outcomes were really intriguing. Of all the people who use ketchup, 36.8% keep it in a cabinet and 63.2% keep it in the refrigerator.
It’s intriguing to learn the motivations behind some people’s decisions to disregard refrigeration recommendations. They contend that ketchup tastes good even when kept at room temperature and that it doesn’t spoil readily. The good news is that you can keep your ketchup fresher for longer by refrigerating it, which will increase its shelf life.
Thus, keep in mind what Heinz suggests if you’re still not sure if you should refrigerate your ketchup. And why not follow the rest of us and store that bottle of ketchup in the refrigerator, nice and cold? It’s a simple method to guarantee that your favorite condiment remains flavorful and fresh.
It’s your time to comment on the ketchup controversy now! Which is better for storing ketchup—in a cupboard or the refrigerator? Let’s continue the conversation and hear about your ketchup preferences!
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