You are given a set of scales and 12 marbles.
Marble riddle scale.
The marbles are all uniform in size appearance and shape.
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.
2 8 of them are exactly the same weight.
You have 12 marbles.
The scales are of the old balance variety.
We put 3 marbles on each pan for a total of 6 marbles on the pan and we leave 2 marbles off the pan.
If when comparing the 6 marbles we find that both sides are equal then we know that the heaviest marble has to be in the 2 marbles that are not on the scale.
In any case on to the riddle.
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.
Lastly use the scale to weigh the 2 remaining marbles to determine the heavier marble.
The remaining marble is slightly heavier than the others.
1 you have 9 marbles as seen.
Yeah i probably shouldn t have even bothered with the picture.
How do you determine which marble is the heaviest using only the scale and marbles in 2 weighings.
Riddles hard riddles logic riddles previous riddle sliding coins.
Next riddle probability other child is a boy.
That is a small dish hangs from each end of a rod that is balanced in the middle.
There are 8 marbles that weigh 1 ounce each and 1 marble that weighs 1 1 ounces.
So let s do this.
You have a balance that contains 2 trays.
This means that we only have to compare on those 2 remaining marbles and we have the heaviest marble in only two weighings.
Mensa level brain teaser on mind bluff.
Use the scale to determine the group that contains the heavier marble.