You have 8 marbles.
You have 8 marbles one is heavier.
You a provided with a simple mechanical balance and you are restricted to only 2 uses.
Find the heavier ball.
No matter which case happens you weighed marbles only twice and found the heavy one.
All of the marbles weigh the same except for one which is heavier than all of the others.
First we weigh 1 2 3 on the left and.
Keep the heavy group of 3 marbles and discard the rest.
One of them is heavier than the rest of the 7 all the others weigh exactly the same.
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Seven of the marbles have the same weight and one marble is heavier.
If they are the same weight then the 3rd is the heaviest.
If one is heavier than the other then we ve succeeded in just two weighings.
Since we now have 3 marbles 1 of which is the heavy one put 1 in each side 1 left 1 right 1 unused set the scale again.
This 9 balls puzzle problem is very similar to 8 balls weight puzzle where 8 identical looking balls are given and one of the balls is heavier than rest of the 7 balls.
For convenience sake let s name the balls 1 8.
Suppose you have 8 marbles and a two pan balance used to compare the weight of 2 things.
If it tips to a side we know that marble is the heavy one.
From the heavier three put one aside and place one marble on each tray.
You have eight marbles.
If equal then the one you set aside is the heavy one.
7 marbles weigh 1 ounce each one marble weighs 1 5 ounces.
You are given 8 identical looking balls.
If instead it balances we know the one unused marble is the heavy one.
If one side is heavier than the other then we only have 3 marbles left.
You have a weighing scale that consists of 2 pans but the scale is only good for 2 total weighings.
If when comparing the 6 marbles we find that both.
You are unable to determine which is the heavier marble by looking at them.
Red and blue marbles puzzle you have given 50 red marbles 50 blue marbles and two empty jars.
Explain how you can deter mine the heavier marble by using a balance scale exactly a.
How would you find the heaviest marble if you are only allowed to weigh the marbles 2 times.
You have to put all the 100 marbles into the jars.
Then in the second weighing we can compare 2 of those 3 marbles to each other.