প্রশ্ন ও উত্তর
A man rows upstream 24 km and downstream 36 km, taking 6 hours each time. The velocity of the current will be:
গণিত Boat and Stream 07 Oct, 2020
প্রশ্ন A man rows upstream 24 km and downstream 36 km, taking 6 hours each time. The velocity of the current will be:
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