try work this out , alittle exercise for the brain

scorpioscopes · Post by **scorpioscopes** » Sat Nov 28, 2009 3:02 pm

You have nine snooker balls , eight weighing equally the same , one slightly heavier .
Using a balance only twice ,can you find the heavier ball .

Packard · Post by **Packard** » Mon Nov 30, 2009 8:57 am

Put 3 on each side. If they weigh the same then you know that the heavier one is amongst the 3 that you have not weighed. If one group is heavier than the other, then you know that the heavier ball is amongst those three.

Then take the group of 3 balls that you have determined has the heavier ball and place one ball on each side a hold the remaining ball aside. If the two balls weigh the same, then the ball that is not being weighed is the heavier one. If one ball is heavier, it is the heavy one.

Two weighings, one heavy ball determined. I feel stronger already.

scorpioscopes · Post by **scorpioscopes** » Fri Dec 04, 2009 7:39 am

On the ball Packard , excellent work .......
Got this in class recently , baffled brain for hours

Packard · Post by **Packard** » Fri Dec 04, 2009 9:02 am

scorpioscopes wrote:On the ball Packard , excellent work .......
Got this in class recently , baffled brain for hours

Hours? I have a 3 minute limit. Anything I can't figure out in 3 minutes gets forgotten. That's probably why I've never married.

try work this out , alittle exercise for the brain

try work this out , alittle exercise for the brain

Re: try work this out , alittle exercise for the brain

Re: try work this out , alittle exercise for the brain

Re: try work this out , alittle exercise for the brain