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#29783 Bangla Language & Literature Time and Work Level 0

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?

  1. A 0.5
  2. B 5.0
  3. C 6.4
  4. D 7.5
Answer: D - 7.5

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