প্রশ্ন ও উত্তর
A man and a boy can finish a job working together for 4 days. The man can work as much as two boys can do. Then in how many days can the man do it alone?
গণিত Time and Work 07 Oct, 2020
প্রশ্ন A man and a boy can finish a job working together for 4 days. The man can work as much as two boys can do. Then in how many days can the man do it alone?
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6
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