Algebra.Com's Answer #827854 by ikleyn(52803)![\"\"](\"/images/stars/stars-13.gif\")  
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document.write( "For a certain medication, the amount (in milligrams) of the medicine given to a patient in a single dose
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document.write( "may vary from 400 milligrams up to and including 550 milligrams.
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document.write( "An adult patient can receive at most 3,000 milligrams of this medication in a 24-hour period.
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document.write( "How many single doses could an adult patient be given in order to receive exactly the maximum number
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document.write( "of milligrams of this medication in a 24-hour period?
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document.write( "A) 3 or 4
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document.write( "B) 4 or 5
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document.write( "C) 6 or 7
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document.write( "D) 8 or 9
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document.write( "(1) The solution and the answer by @greenestamps are both incorrect.\r\n" );
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document.write( " Indeed, multiply 550 mg by 7, and you will get 3850 mg, \r\n" );
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document.write( " which is greater than 3000 mg and, therefore, is PROHIBITED\r\n" );
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document.write( " (does not satisfy the imposed restriction).\r\n" );
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document.write( "(2) The correct reasoning is to divide 3000 mg by 550 mg,  = 5.4545...\r\n" );
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document.write( " and then round this periodical real decimal fraction to greatest SMALLER integer number,\r\n" );
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document.write( " which is 5. Thus 5 is the maximum admitted number of dosages.\r\n" );
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document.write( " THEREFORE, the correct answer is (B): 4 or 5 dosages.\r\n" );
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document.write( " Actually, the normal answer would be 5 dosages, but, because in the answer list \r\n" );
document.write( " we have pairs of numbers, we select from the answer list that UNIQUE pair\r\n" );
document.write( " which has 5 as a maximum number.\r\n" );
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document.write( "(3) The problem's wording (question) is confusing. To avoid confusing, it MUST be re-edited.\r\n" );
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document.write( " One my possible editing is below.\r\n" );
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document.write( " For a certain medication, the amount (in milligrams) of the medicine given to a patient in a single dose \r\n" );
document.write( " may vary from 400 milligrams up to and including 550 milligrams. \r\n" );
document.write( " An adult patient can receive at most 3,000 milligrams of this medication in a 24-hour period. \r\n" );
document.write( " How many single doses could an adult patient be given in order to receive  the maximum \r\n" );
document.write( " possible number of milligrams of this medication in a 24-hour period under the imposed condition ? \r\n" );
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document.write( "Solved.\r
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