There is a 100 pound watermelon laying out in the sun. 99 percent of the watermelon's weight is water. After laying out for a few hours 98 percent of the watermelon's weight is water.\nHow much water evaporated?\nOptions:\n(A) 20\n(B) 30\n(C) 40\n(D) 50\n(E) 10 Stream of consciousness first, then make a decision:
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In the beginning it is 99 pounds water and 1 pound other stuff. At the end the 1 pound other stuff is 2 percent so the total weight is 50 pounds. 50 pounds - 1 pound other stuff = 49 pounds water. So 99 pounds - 49 pounds = 50 pounds water lost.
Thus, the answer is (D).
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