document.write( "Question 1155818: a candy company knows that it will take one candy wrapping machine 40 minutes to fill an order. after the machine has been working for 15 minutes the machine operators start another candy wrapping machine on the same order. with both machines running they finish the order 15 minutes later. how long would it take the second machine working alone to fill the order? \n" ); document.write( "

Algebra.Com's Answer #778508 by greenestamps(13200) $\"\"$ $\"About$

You can put this solution on YOUR website!

\n" ); document.write( "The (corrected) solution by tutor @josgarithmetic is a typical good formal algebraic approach.

\n" ); document.write( "If a formal algebraic solution is not required, you can solve the problem informally, using basically the same calculations, with just a few quick mental calculations.

\n" ); document.write( "If I were to solve this problem by the quickest possible method, I would do it something like this.

\n" ); document.write( "The first machine works for a total of 30 minutes; since it takes that machine 40 minutes to do the job alone, in those 30 minutes it does 3/4 of the job.

\n" ); document.write( "That means the second machine, which works for 15 minutes, does 1/4 of the job.

\n" ); document.write( "And that means it would take the second machine 60 minutes to do the whole job alone.

\n" ); document.write( "Note if you finish the formal algebraic solution suggested by tutor @josgarithmetic, those are exactly the same calculations you do. \n" ); document.write( "

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