You have a balance that contains 2 trays.
Marble riddle scale.
In any case on to the riddle.
You have 12 marbles.
The scales are of the old balance variety.
You are only able to use the scale 2 times.
This means that we only have to compare on those 2 remaining marbles and we have the heaviest marble in only two weighings.
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.
You don t know which is.
Lastly use the scale to weigh the 2 remaining marbles to determine the heavier marble.
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.
Use the scale to determine the group that contains the heavier marble.
The remaining marble is slightly heavier than the others.
You are given a set of scales and 12 marbles.
Mensa level brain teaser on mind bluff.
Next riddle probability other child is a boy.
There are 8 marbles that weigh 1 ounce each and 1 marble that weighs 1 1 ounces.
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.
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.
Yeah i probably shouldn t have even bothered with the picture.
2 8 of them are exactly the same weight.
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