document.write( "Question 359642: two hoses,one of which has a flow-rate three times the other, can together fill a tank in 3 hours. How long does it take each of the hoses individually to fill the tank? \n" ); document.write( "
Algebra.Com's Answer #256648 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!

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document.write( "Hi,
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document.write( "Let x be the low-rate of one hose.  Then 3x would the low-rate of the other
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document.write( "question states following (using \"in 1hr's time\" as the equalizer)
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document.write( "\"%281%2Fx%29+%2B+%281%2F3x%29+=+%281%2F3hr%29\"
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document.write( "Multiplying both sides of the equation by 3x so as all denominators are 1
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document.write( "3 + 1 = x
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document.write( "4 = x
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document.write( "on hose can fill the tank in 4 hrs the other in (3*4) or 12 hrs
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document.write( "checking our answer
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document.write( "1/4  + 1/12 =  4/12 =1/3 \n" );
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