Mathematics · Time and Work
Given that A and B together can finish a task in 12.5 days, B and C together can do it in 18.75 days, and A and C together can do it in 15 days, how long would it take for A, B, C, and D (with D having only 40% of C's efficiency) to complete the same task collectively?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1293 days
- 29727 days✓
- 391727 days
- 4283 days
Correct answer
9727 days
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