12 Marbles Problem Solution

Marble weighing problem you have 12 marbles.

12 marbles problem solution. Either they balance or they don t. Eleven of the marbles are of equal weight but one is heavier or lighter. If you want to warm up your skills you can try this easier 8 ball problem first. 12 marbles problem.

So another perfectly valid solution to the 12 marbles puzzle might even be. How can you find the heavier marble by using a balance scale only thrice. If they balance then the different marble is in the group 9 10 11 12. One of the 12 marbles is irregular but you don t know whether it s heavier or lighte.

Here is an interesting riddle involving 12 marbles and a balance scale. 2v2 8 xy 1v1 0 z 3v3 2 xy 1v1 1 z 1v1 0 which requires only two weights in one third of the cases. You don t know if that one is heavier or lighter. For the first weighing let us put on the left pan marbles 1 2 3 4 and on the right pan marbles 5 6 7 8.

One of the marbles is heavier in weight than the rest. You have a balance scale. You have twelve marbles that are identical in size shape and color. If both sides are equal all eight marbles on the scale can be eliminated.

First we weigh 1 2 3 4 on the left and 5 6 7 8 on the right. There are two possibilities. 12 marbles written on 3 23 am by vja students you have twelve marbles. Pick 2 groups and use the scale to determine which group contains.

They all weigh the same except one. The problem can be solved in three weighings. This question is quite tricky. Split the marbles into 3 groups with 4 marbles each.

Ok let s get on with it. For convenience sake let s name the balls 1 12. Weigh four marbles against four others leaving four on the table. There are three scenarios which can arise from this.