100 kgs of potato contains 99% water.Its kept in the sun.The water evaporates and now amount of water is 98 %.Whats the weight of the potatoes?

One Answer on this Question

1. Initially, potatoes have 99% water by weight ; which means they have 1% solid non-water content.

   1% of 100 kg = 1 kg

   Now even when they dehydrate,this 1kg solid mass remains constant.

   It is given that finally, 98% is water by weight , which implies that 2% is non-water solid.

   This means 2% of total weight = 1 kg

   Total weight *2/100 = 1 kg

   Therefore, total weight finally = 50 kg.

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