Sorry guys. Forgive me of my poor english.

The OA is 50g.

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Before getting dried, the weight of the fruit is 100 gram.

Since 99% of it is water, the portion which is not water is 1 gram.

After getting dried, 98% of the fruit is water.

Now, let x be the weight of water and T be the weight of the fruit.

(T = x + 1)

(x/T) * 100 = 98%

100x = 98T

100x = 98(x + 1)

2x = 98

x = 49

T = 49 + 1 =

50
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Auge um Auge, Zahn um Zahn !