Source: Princeton Review
Working together without a break, Jermaine and Crystal can do a job in 12 hours. How long will it take Crystal to do the job alone?
1) Working without a break, Jermaine takes 16 hours to do the job alone
2) Working alone and without a break, Crystal take 24 hours to do half the job
The OA is D
Working together without a break, Jermaine and Crystal can do a job in 12 hours. How long will it take Crystal to do...
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