You have a balance that contains 2 trays.
Marble riddle scale.
You can perform up to a maximum of three weighings to find out which marble has the different weight and if it is heavier or lighter than the others.
You are only able to use the scale 2 times.
The marbles are all uniform in size appearance and shape.
You don t know which is.
And if the marbles on the scale do not weigh the same then we know that one of the marbles on the scale is the heaviest and we can eliminate the marbles that are not on the scale.
Yeah i probably shouldn t have even bothered with the picture.
In any case on to the riddle.
How do you determine which marble is the heaviest using only the scale and marbles in 2 weighings.
That is a small dish hangs from each end of a rod that is balanced in the middle.
So let s do this.
Riddles hard riddles logic riddles previous riddle sliding coins.
You are given a set of scales and 12 marbles.
You have 12 marbles.
Use the scale to determine the group that contains the heavier marble.
The remaining marble is slightly heavier than the others.
We put 3 marbles on each pan for a total of 6 marbles on the pan and we leave 2 marbles off the pan.
The scales are of the old balance variety.
You can put things in the little buckets and the scale will tip to the heavier side.
1 you have 9 marbles as seen.
Mensa level brain teaser on mind bluff.
2 8 of them are exactly the same weight.
There are 8 marbles that weigh 1 ounce each and 1 marble that weighs 1 1 ounces.
Lastly use the scale to weigh the 2 remaining marbles to determine the heavier marble.