SSC CGL – Combined Graduate Level Examination · प्रश्न 69
X is able to complete a task in 12 days, while Y takes 18 days to finish the same task. If they collaborate and work together for 3 days, what fraction of the work will still remain?
उत्तर देखें और व्याख्या
उत्तर: (C) 7/12
व्याख्या
3 days × (1/12 + 1/18) = 5/12 done, so 7/12 remains.