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One Crew Can Drywall a House in 7 Days and Another

Question 56

Multiple Choice

One crew can drywall a house in 7 days and another crew can drywall the same house in 9 days. If both crews work together, how long will it take to dry wall the house?


A) 8 days
B) 6 days
C) 6316\frac { 63 } { 16 } days
D) 72\frac { 7 } { 2 } days

Correct Answer:

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