প্রশ্ন ও উত্তর
A and B can do a work in 12 days. B and C can do it is 15 days and A and C can do it in 20 days. If all of them work together, in how many days they can finish the work?
গণিত Time and Work 07 Oct, 2020
প্রশ্ন A and B can do a work in 12 days. B and C can do it is 15 days and A and C can do it in 20 days. If all of them work together, in how many days they can finish the work?
সঠিক উত্তর
10
মন্তব্য
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