Balance Beam Scale Riddle 7 Marbles

If 1 2 5 vs 3 6 12 balances then either 4 is the odd light ball or 7 or 8 is the odd heavy ball.

Balance beam scale riddle 7 marbles.

You are given a set of scales and 12 marbles. The scales are of the old balance variety. These differ from puzzles that assign weights to items in that only the relative mass of these items is relevant. Pick 2 groups and use the scale to determine which group contains the heavier marble.

1 you have 9 marbles as seen. That is a small dish hangs from each end of a rod that is balanced in the middle. You can put things in the little buckets and the scale will tip to the heavier side. Yeah i probably shouldn t have even bothered with the picture.

In any case on to the riddle. A real weight balance or scale looks slightly like the apparatus i drew above. Split the marbles into 3 groups with 4 marbles each. If 3 6 12 is heavy then either 6 is the odd heavy ball or 1 or 2 is the odd light ball.

A balance puzzle or weighing puzzle is a logic puzzle about balancing items often coins to determine which holds a different value by using balance scales a limited number of times. If it s not completely clear how we can make the assumption that the bad coins is in group 7 8 9 when the scales balance remember we know there is a bad coin there has to be we have eliminated the other two. 2 8 of them are exactly the same weight.