SOLUTION: an experienced bricklayer can construct a small wall in 3 hours. If him and his apprentice can complete the job together in 2 hours, how long does it take his apprentice to build t
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Question 961991: an experienced bricklayer can construct a small wall in 3 hours. If him and his apprentice can complete the job together in 2 hours, how long does it take his apprentice to build the same wall by himself
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
1/3+1/X=1/2
1/X=1/2-1/3
1/X=3/6-2/6
1/X=1/6
X=6 HOURS FOR THE APPRENTCE WORKING ALONE.
PROOF:
1/3+1/6=1/2
2/6+1/6=1/2
3/6=1/2
1/2=1/2
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