Hello everyone, welcome back to today’s quick math challenge!
Look at this colorful scale sitting perfectly balanced in front of us.
Do you love solving fun brain teasers that make you feel like a clever detective?
If your answer is yes, then you are definitely in the right place today.
Take a close look at the image on your screen.
We have a classic two-pan scale that is completely level and balanced right in the middle.
On the left pan, we can see three shiny red balls alongside a block marked 4 kg.
On the right pan, we see just one single red ball accompanied by a heavier block marked 10 kg.
Now, here is the big question for you: how much does each red ball weigh?
At first glance, this might look a little bit tricky with all these items on both sides.
But don’t worry at all, because solving it is actually much easier than you think!
Let’s walk through this fun puzzle step by step together.
Since the scale is balanced, both sides must have the exact same total weight.
That means the weight on the left side equals the weight on the right side.
Imagine we want to simplify this picture to make our job much easier.
What happens if we take away one red ball from both sides at the exact same time?
Because we remove the exact same weight from both sides, the scale stays perfectly balanced.
Now, let’s see what is left on each pan after taking away those two red balls.
On the left pan, we used to have three red balls, so now we have two red balls left, plus the 4 kg block.
On the right pan, the only red ball is now gone, leaving only the 10 kg block.
Isn’t that already much cleaner and simpler to look at?
So right now, two red balls plus 4 kg equals 10 kg.
Now, let’s figure out what those two remaining red balls weigh together.
If two red balls plus 4 kg equal 10 kg, we can simply subtract 4 kg from 10 kg.
Ten minus four gives us six, which means the two red balls together weigh exactly 6 kg.
We are almost at our final answer now!
If two identical red balls weigh 6 kg in total, how much does just one red ball weigh?
We simply divide 6 kg by 2.
Six divided by two is 3 kg.
So, each red ball weighs exactly 3 kg!
Let’s double-check our answer to make sure our logic is 100% correct.
On the left side, three red balls weigh 9 kg because three times three is nine.
Add the 4 kg block to that 9 kg, and we get a total weight of 13 kg.
Now, let’s check the right side of the scale.
One red ball weighs 3 kg, and we add the 10 kg block to it.
Three plus ten also equals 13 kg!
Both sides equal 13 kg, which proves our answer is completely correct.
Did you get 3 kg as your answer before we solved it together?
Great job to everyone who figured it out quickly!
Sharing simple math puzzles like this is a wonderful way to keep your mind sharp and active every single day.
Thank you so much for joining today’s fun challenge, and see you next time!
