Do you know if the faulty marble is lighter or heavier?
On 2/2/07, Atamurad Hezretkuliyev [EMAIL PROTECTED] wrote:
Hi,
Can somebody help me with this puzzle? I tried to solve it but couldn't.
Puzzle 1
Weighing marbles
Given are 12 marbles. One of these marbles is slightly heavier or
We don't know if the marble is heavier or lighter ... which makes it
interesting :)
Here's a very clever solution:
http://mathforum.org/kb/message.jspa?messageID=1085028tstart=0
On 2/2/07, aditi saha [EMAIL PROTECTED] wrote:
Do you know if the faulty marble is lighter or heavier?
On 2/2/07,
Split the marbles into sets of 4 each
Compare the first and second sets
If both the sets are equal (the problem is in third set)
{
choose 2 of the marbles in the third set
compare with 2 marbles from the first set(which we know are good)
if comparision is equal
{
compare one of
