little challenge.
You have 8 balls (all look and) weight the same BUT 1 of the balls weights less than the rest.
You have a scale, and you can use the scale twice. How can you determine which ball is the ball that weighs less ?

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- idku

oh, message. please don't just give it away...

- sdfgsdfgs

"You have 8 balls (all look and) weight the same BUT 1 of the balls weights less than the rest."
I think it should say...
"You have 8 balls (all look and) weight the same PLUS 1 balls which weighs less than the rest."
:)

- idku

but is a corresponding conjunction that fits the purpose that I want to indicate. That is, that although 8 balls weight the same, there is an exception (one of the balls weighs less).

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## More answers

- welshfella

yes but that is 3 weighings

- sdfgsdfgs

@idku its ur Q so u get to decide how it reads :P
i just thought making 9 the total no. of balls will make the Q easier! lol

- welshfella

if you take 2 pairs of 3 and they weigh the same then the light ball is one of the other 2 You then weigh one against the other to find the light ball.

- welshfella

oh we have nine balls?

- welshfella

oh we decide 8 or 9 right?

- sdfgsdfgs

@welshfella Nope - I thought it was with 9 balls but OP said its 8. either way u got it :)

- geerky42

\(\color{blue}{\text{Originally Posted by}}\) @sdfgsdfgs
"You have 8 balls (all look and) weight the same BUT 1 of the balls weights less than the rest."
I think it should say...
"You have 8 balls (all look and) weight the same PLUS 1 balls which weighs less than the rest."
:)
\(\color{blue}{\text{End of Quote}}\)
I'm sure OP is intended to say first one...

- imqwerty

the question is what is the final question??

- welshfella

now if one set of 3 balls weigh differently you take the lightest and pick 2 out and weigh them again If 0ne wieghs light its that one If they weigh the same its the other ball.

- sdfgsdfgs

correct @welshfella n thats why I thought making a total 9 would be easier. But same method will work for 8.

- welshfella

good question

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