Brain teasers and math riddles are always fun to solve.
They test your logic and make you think carefully about words.
Today, we have a simple yet tricky puzzle about a professor and some chalk.
Let us look at the puzzle and break it down together step by step.
The Riddle Story
A professor has 10 pieces of chalk left in total.
During a class, they use 2 pieces up completely until nothing remains.
Then, they accidentally lost 1 piece of chalk.
After that, they broke 2 of their last remaining pieces into 4 smaller pieces each.
Now, here is the big question: How many pieces of chalk are left?
Step-by-Step Breakdown
At first glance, this looks like a simple math subtraction problem.
However, riddles always require you to pay attention to every detail.
Let us start with the starting number, which is 10 pieces.
First, the professor used 2 pieces up.
“Used up” means those 2 pieces are completely gone.
So, 10 minus 2 leaves us with 8 pieces.
Next, the professor lost 1 piece.
If a piece is lost, it is no longer with the professor.
So, 8 minus 1 leaves us with 7 pieces.
Now, we reach the most interesting part of the riddle.
The professor broke 2 of their last ones into 4 pieces each.
Let us see what happens to the total count when you break chalk.
Out of the 7 pieces left, 5 pieces stay as whole sticks.
The professor takes the remaining 2 pieces and breaks each into 4 smaller pieces.
Breaking 1 piece into 4 parts gives you 4 small pieces of chalk.
Breaking 2 pieces into 4 parts each gives you a total of 8 small pieces. 2 x 4 = 8
Remember, a small piece of chalk is still a piece of chalk!
Finding the Final Answer
Now, let us combine all the pieces together.
We still have the 5 unbroken pieces of chalk.
We also have the 8 new broken pieces of chalk.
When you add them together (5 + 8), you get 13.
Therefore, the correct answer to this riddle is 13 pieces of chalk!
It is a wonderful puzzle that shows how breaking things can actually increase the count.
