20 beavers, working together in a constant pace, can build a dam in 3 hours. How many hours C will it take 12 beavers that work at the same pace, to build the same dam?  Choose the correct choice from the following: A) 2. B) 4. C) C=5. D) C=6. E) 8.
C. 5 hrs   If there were 10 beavers it qould have taken double C= 6hrs.. so closest to that option is 5.
<result>C</result>
20 beavers, working together in a constant pace, can build a dam in 3 hours. How many hours C will it take 12 beavers that work at the same pace, to build the same dam?