Have you ever looked at a balance scale and tried to solve a riddle?
Riddles like this are a great way to train your brain.
Let us look at this picture together and find the answer.
It looks like a tricky puzzle, but we can solve it step by step using simple logic.
Step 1: Understand the scale
First, look at the balance scale.
The scale is perfectly balanced, which means the left side and the right side have the exact same weight.
Now, let us write down what is on each side.
Step 2: Look at the left side
On the left scale, we can see some red balls and a weight.
Let us count the red balls carefully.
There are 4 red balls on the flat part of the scale, stacked in two small towers.
There is also 1 red ball sitting on top of a 2 kg weight.
So, on the left side, we have a total of 5 red balls and a 2 kg weight.
Let us write this down: (5 Red Balls) + 2 kg.
Step 3: Look at the right side
Now, let us look at the right scale.
There are 2 red balls stacked on the flat part of the scale.
There is also 1 red ball sitting on top of a 7 kg weight.
So, on the right side, we have a total of 3 red balls and a 7 kg weight.
Let us write this down: (3 Red Balls) + 7 kg.
Step 4: Use the logic of balance
Since the scale is balanced, we know that the left side is equal to the right side.
So: (5 Red Balls) + 2 kg = (3 Red Balls) + 7 kg.
To make things easier, we can take away the same amount from both sides.
Let us take away 3 red balls from both the left and the right sides.
The scale will still stay perfectly balanced.
On the left side, we had 5 red balls, so now we have only 2 red balls left.
The left side is now: (2 Red Balls) + 2 kg.
On the right side, we had 3 red balls, so now there are no red balls left there.
The right side is now just the 7 kg weight.
Our new balanced equation is: (2 Red Balls) + 2 kg = 7 kg.
Step 5: Find the final answer
Now, we can find the weight of those 2 remaining red balls.
If (2 Red Balls) + 2 kg = 7 kg, then the 2 red balls must weigh: 7 kg – 2 kg = 5 kg.
So, 2 red balls weigh 5 kg together.
To find the weight of just 1 red ball, we need to divide this weight by 2.
We calculate: 5 kg divided by 2 is 2.5 kg.
So, 1 red ball weighs 2.5 kg!
That is the correct answer!
Solving math puzzles is easy when you take it one step at a time.
Did you get the same answer?
