document.write( "Question 935441: A can do a piece of work in 10 days, B can do the same in 30 days and C in 60 days. If A is assisted on alternate days by B and C, in how many days would the work get completed? \n" ); document.write( "

Algebra.Com's Answer #568670 by josgarithmetic(39617) $\"\"$ $\"About$

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B and C work an (approximately) equal number of days, and each works HALF the number of days that A works.\r
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\n" ); document.write( "\n" ); document.write( "Let t be number of days that A worked, and the whole job to be done is 1.
\n" ); document.write( "The rule is RT=J for rate, time, job. The rate expression is a little more complicated, since it is composed of a sum of terms.\r
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\n" ); document.write( "\n" ); document.write( "I might be misunderstanding the description, but:
\n" ); document.write( " $\"%281%2F2%29%281%2F10%2B1%2F30%29t%2B%281%2F2%29%281%2F10%2B1%2F60%29t=1\"$
\n" ); document.write( "which shows half the days A and B do the work, and the other half of the days, A and C do the work, until the whole job is done.\r
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\n" ); document.write( "\n" ); document.write( "Another understanding may be that half the days, A works alone and on the other half of the days, both B and C help:
\n" ); document.write( " $\"%281%2F2%29%281%2F10%29t%2B%281%2F2%29%281%2F10%2B1%2F30%2B1%2F60%29t=1\"$ \r
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\n" ); document.write( "\n" ); document.write( "One or the other of those should be the correct interpretation. Solve for t (and accept the result which seems to work right, or the one that matches your answer key if it's available). \n" ); document.write( "

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