SOLUTION: Kevin stuffs shrimp in his job as a seafood chef. He can stuff 1,200 shrimp in 4 hours. When his sister helps him, they can stuff 1,200 shrimp in 3 hours. If Kevin gets sick, how l
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Question 1121633: Kevin stuffs shrimp in his job as a seafood chef. He can stuff 1,200 shrimp in 4 hours. When his sister helps him, they can stuff 1,200 shrimp in 3 hours. If Kevin gets sick, how long will it take his sister to stuff 600 shrimp? Answer by ikleyn(52797) (Show Source):
Working alone, Kevin stuffs = 300 shrimps per hour.
Working with the sister, they both stuff = 400 shrimps per hour.
Hence, the sister stuffs 400 - 300 = 100 shrimps per hour.
It means that the sister can stuff 600 shrimps in = 6 hours.
