A man and a boy together can complete a job in 81 days. Two man and three boys together can complete the job in 36 days. In how many can 4 men working together complete the job?

গণিত Time and Work 07 Oct, 2020

প্রশ্ন A man and a boy together can complete a job in 81 days. Two man and three boys together can complete the job in 36 days. In how many can 4 men working together complete the job?

  • ক.
    30
  • খ.
    36
  • গ.
    38
  • ঘ.
    21

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