10 Marbles Riddle

2 9 10 11 is heavy.

10 marbles riddle. Simply weigh 9 against 10. 3 you are allowed to use set the scale twice in total. You are given a set of scales and 12 marbles. One of the 12 marbles is irregular but you don t know whether it s heavier or lighte.

With a scale you have to figure out how to figure out which bag contains the 9 ounce marbles. In any case on to the riddle. There are 10 bags of marbles. The scales are of the old balance variety.

3 9 10 11 is light. 1 you have 9 marbles as seen. If a black marble comes out you know that has to be the black marbles box so you put the black label on it. But you have to follow the following rules.

9 bags contain 10 ounce marbles. Here is an interesting riddle involving 12 marbles and a balance scale. That is a small dish hangs from each end of a rod that is balanced in the middle. 2 8 of them are exactly the same weight.

Since you know that the box is labeled incorrectly it must have all black marbles or all white marbles. If they balance 11 is the heavy marble. You can use a scale you can use an empty sack. In other words you get to take 2 measurements or comparisons here.

The remaining marble is slightly heavier than the others. The one labeled both. If not the heavier one is the heavy marble. 1 bag contains 9 ounce marbles.