Mathematics · Time and Work
A can do a piece of work in 15 days and B can do the same work in 20 days. C is 20% more efficient than A and D is 20% less efficient than B. Find in how many days C and D together can complete the work.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 16.25 days
- 211.11 days
- 38.33 days✓
- 419 days
Correct answer
8.33 days
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