Mathematics · Time and Work
A can copy 75 pages in 25 hours. A and B together can copy 135 pages in 27 hours. In how much time can B copy 42 pages?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 148 hours
- 221 hours✓
- 323 hours
- 418 hours
Correct answer
21 hours
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