Mathematics · Time and Work
In how many days could P, Q, and R together complete a work, if P can do it in 40 days, Q can finish it in 80 days, and R can finish it in 120 days?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 121 911 days✓
- 221 611 days
- 321 511 days
- 421 811 days
Correct answer
21 911 days
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