2 8 of them are exactly the same weight.
Marble riddle scale.
Riddles hard riddles logic riddles previous riddle sliding coins.
1 you have 9 marbles as seen.
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 have a balance that contains 2 trays.
The scales are of the old balance variety.
This means that we only have to compare on those 2 remaining marbles and we have the heaviest marble in only two weighings.
Lastly use the scale to weigh the 2 remaining marbles to determine the heavier marble.
How do you determine which marble is the heaviest using only the scale and marbles in 2 weighings.
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.
Mensa level brain teaser on mind bluff.
Yeah i probably shouldn t have even bothered with the picture.
You can put things in the little buckets and the scale will tip to the heavier side.
You don t know which is.
We put 3 marbles on each pan for a total of 6 marbles on the pan and we leave 2 marbles off the pan.
There are 8 marbles that weigh 1 ounce each and 1 marble that weighs 1 1 ounces.
That is a small dish hangs from each end of a rod that is balanced in the middle.
So let s do this.
The remaining marble is slightly heavier than the others.
The marbles are all uniform in size appearance and shape.
Use the scale to determine the group that contains the heavier marble.
You are only able to use the scale 2 times.
You have 12 marbles.
You are given a set of scales and 12 marbles.