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Old 11-08-2012
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Re: Riddles with a Prize, by Mantus Anchors

Hmmm... I'll have a go.

10kg must be 2% of the weight (not the water). Therefore, the berries weigh 500kg now. I think.

If 99% by weight is water and the berries weigh 1000kg, then the water weighed 990kg and the non water portion of the berries was 1kg.

Thus the partially dried berries (i.e. only some of the water was removed) were 98% water by weight, then we would get the following formula:

Xkg = 98% of Xkg + 10kg
X = 0.98X + 10
0.02 X = 10
X = 10 / 0.02
X = 500

My brain hurts. My caffeine level is low. I probably missed a decimal point.....

So the berries weigh 500 kgs now yes? That's my final answer!

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