Mathematics · Time and Work
A, B, and C can complete a work in 15 hours, 12 hours, and 20 hours respectively. At 4:00 p.m., A, B, and C start together. After working together for 2 hours, A leaves and B leaves 2 hours before the completion of the work. At what time will the whole work be completed?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 110:45 p.m.
- 212:45 a.m.
- 312:00 a.m.
- 411:45 p.m.✓
Correct answer
11:45 p.m.
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