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Percent mass after dehydration?
99% of the mass of a watermelon is water. After the watermelon was lying in the sun it dried up some, and now contains only 98% water. By how many percent has the total mass of the watermelon decreased?
Thank you ☺
1 réponse
- M3Lv 7il y a 7 ansRéponse favorite
the "non-water" part which was previously 1% has now become 2%
which with a little thought will tell that total mass must have become 1/2 or 50%
ans: 50% decrease
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