Mathematics · Time and Work
A can write 750 pages in 25 hours. A and B together can write 1350 pages in 27 hours. In how many hours can B alone write 420 pages?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 124 hours
- 221 hours✓
- 318 hours
- 415 hours
Correct answer
21 hours
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