1 . A and B together can paint a wall in 3 days . A can do it alone in 5 days . How many days would it take B to do this job alone ?
- A. 0.2
- B. 7.5
- C. 5.0
- D. 6.4
- D. None of these
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1 . A and B together can paint a wall in 3 days . A can do it alone in 5 days . How many days would it take B to do this job alone ?
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