document.write( "Question 1205435: A box contains 15 identical reams of paper. The total mass of the box with 1/5 of all the reams of papers is 33.6 kg lighter than the box with al the reams of paper. The mass of the empty box is 2/7 of a ream of paper. What is the mass of the empty box? \n" ); document.write( "

Algebra.Com's Answer #842242 by ikleyn(52855) $\"\"$ $\"About$

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\n" ); document.write( "A box contains 15 identical reams of paper.
\n" ); document.write( "The total mass of the box with 1/5 of all the reams of papers
\n" ); document.write( "is 33.6 kg lighter than the box with al the reams of paper.
\n" ); document.write( "The mass of the empty box is 2/7 of a ream of paper.
\n" ); document.write( "What is the mass of the empty box?
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\n" ); document.write( "\n" ); document.write( " Usually, it is assumed, that after reading such problem, \r
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document.write( "Indeed, compare these two statements \r\n" );
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document.write( "        A box contains 15 identical reams of paper.\r\n" );
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document.write( "        The total mass of the box with 1/5 of all the reams of papers \r\n" );
document.write( "        is 33.6 kg lighter than the box with al the reams of paper. \r\n" );
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document.write( "From this reading, it should be clear that 12 = 15 - 3 reams of paper weight 33.6 kg,\r\n" );
document.write( "and hence, one ream of paper weights 33.6/12 = 2.8 kg.\r\n" );
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document.write( "One simple step further, and we answer the question: the mass of the empty box is   = 2*0.4 = 0.8 kg.\r\n" );
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document.write( "ANSWER.  The mass of the empty box is 0.8 kilograms.\r\n" );
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\n" ); document.write( "\n" ); document.write( "It is the most detailed solution, which should accompany this problem.\r
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