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?

গণিত Time and Work 07 Oct, 2020

প্রশ্ন 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?

  • ক.
    0.5
  • খ.
    7.5
  • গ.
    5.0
  • ঘ.
    6.4

সঠিক উত্তর

7.5

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