document.write( "Question 1208721: In a store window, there was a box of berries having a total weight of $200$ kg. The berries were $98\%$ water, by weight. After two days in the sun, the water content of the berries was only $90\%$, by weight. What was the total weight of the berries after two days, in kg? \n" ); document.write( "

Algebra.Com's Answer #847128 by ikleyn(52781) $\"\"$ $\"About$

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\n" ); document.write( "In a store window, there was a box of berries having a total weight of 200 kg.
\n" ); document.write( "The berries were 98% water, by weight. After two days in the sun, the water content of the berries was only 90%, by weight.
\n" ); document.write( "What was the total weight of the berries after two days, in kg?
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\n" ); document.write( "\n" ); document.write( " I will assume that the weight of the box itself is irrelevant \r
\n" ); document.write( "\n" ); document.write( " and should not be considered.\r
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document.write( "Since the total weight of berries was initially 200 kg and 98% of the weight was water,\r\n" );
document.write( "it means that the dry fiber was  200 - 0.98*200 = 200 - 196 = 4 kg.\r\n" );
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document.write( "After 2 days drying the berries in the sun, these 4 kg of dry fiber represent only 100% - 90% = 10% of the current total mass.\r\n" );
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document.write( "Hence, the current mass of the 90% wet berries after 2 days of drying in the sun is   = 4*10 = 40 kg.\r\n" );
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document.write( "ANSWER.   The current mass of the 90% wet berries after 2 days of drying in the sun is  40 kg.\r\n" );
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\n" ); document.write( "\n" ); document.write( "Solved.\r
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\n" ); document.write( "\n" ); document.write( "This problem is very SPECIAL, because at this point, after getting this unexpected answer,\r
\n" ); document.write( "\n" ); document.write( "a reader is expected to experience and to express the feeling of amazement, as if he or she sees some miracle.\r
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\n" ); document.write( "\n" ); document.write( "This time, when people measured weight in kilograms, was a thing of the past 60 years ago.\r
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\n" ); document.write( "\n" ); document.write( "Now cultured and educated people say \"4 kilograms of mass\" instead of \"4 kilograms of weight\".\r
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