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