Mathematics · Time and Work
A can write 75 pages in 25 hours. A and B together can write 135 pages in 27 hours. In what time can B write 42 pages?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 119 hours
- 217 hours
- 321 hours✓
- 423 hours
Correct answer
21 hours
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