Mathematics · Time and Work
A completes three-fourth of a work in 9 days, while A and B together can complete the whole work in 9 days. The efficiency of A is what percentage more than the efficiency of B?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1100%
- 2150%
- 3300%
- 4200%✓
Correct answer
200%
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