Mathematics · Time and Work
A can do a certain work in 45 days. B is 50% more efficient than A, and C is 3 times as fast as A. They started the work together but C left 7 days before the completion of the work. In how many days was the entire work completed?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 110 days
- 218 days
- 315 days
- 412 days✓
Correct answer
12 days
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