Mathematics · Time and Work
A and B can separately finish a work in 15 and 20 days, respectively. A starts the work alone and B joins him from the fifth day. How much total time will it take to finish the complete work?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 110 days
- 211 days
- 31137 days✓
- 427 days
Correct answer
1137 days
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