document.write( "Question 1193161: Hi
\n" ); document.write( "On Wednesday Bob had 150 stamps. On Tuesday he lost 16 stamps and had given away 1/6 of the stamps he had. On Monday he shared his stamps equally with his sister.
\n" ); document.write( "How many did he have on Monday.
\n" ); document.write( "Thanks
\n" ); document.write( "

Algebra.Com's Answer #825184 by greenestamps(13200)\"\" \"About 
You can put this solution on YOUR website!


\n" ); document.write( "Exactly as written, the problem does not have a solution in whole numbers and is therefore faulty.

\n" ); document.write( "And the solution from the other tutor does not interpret the given information correctly.

\n" ); document.write( "There are two problems with the statement of the problem:
\n" ); document.write( "(1) The question \"how many did he have on Monday\" doesn't tell us whether the answer is before or after he gave half of his stamps to his sister.
\n" ); document.write( "(2) The statement \"on Tuesday he lost 16 stamps and HAD GIVEN AWAY 1/6 of the stamps he had\", with a correct grammatical interpretation, means that the 16 stamps were lost AFTER he had given away 1/6 of the stamps he had. That interpretation leads to an answer that is not a whole number. So the 16 stamps must have been lost BEFORE he gave away 1/6 of his stamps -- contrary to what the statement of the problem says.

\n" ); document.write( "Sorting out the problem so that it can have a valid solution, here is what happened:
\n" ); document.write( "Monday: started with some number of stamps, gave half to his sister
\n" ); document.write( "Tuesday: lost 16 stamps, then gave away 1/6 of what he had left
\n" ); document.write( "Wednesday: finished with 150 stamps

\n" ); document.write( "x = # he started with

\n" ); document.write( "number he had after giving half of them to his sister: \"x%2F2\"
\n" ); document.write( "number he had after losing 16 stamps: \"x%2F2-16\"
\n" ); document.write( "number he had after giving away 1/6 of what he had: \"%285%2F6%29%28x%2F2-16%29\"

\n" ); document.write( "He finished with 150 stamps:

\n" ); document.write( "\"%285%2F6%29%28x%2F2-16%29=150\"
\n" ); document.write( "\"x%2F2-16=150%286%2F5%29=180\"
\n" ); document.write( "\"x%2F2=180%2B16=196\"
\n" ); document.write( "\"x=196%2A2=392\"

\n" ); document.write( "ANSWER: He started with 392 stamps

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\n" ); document.write( "In response to the parent who said his son copied this problem verbatim from the textbook....

\n" ); document.write( "I don't at all doubt that. People who write math problems often demonstrate a lack of understanding of English. It's sad, though, that the sloppy language gets past the editors/publishers of the textbook.
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