প্রশ্ন ও উত্তর
In a stream running at 2 km/hr, a motor boat goes 10 km upstream and back again to the starting point in 55 minutes. Find the speed of the motor boat in the still water.
গণিত Boat and Stream 07 Oct, 2020
প্রশ্ন In a stream running at 2 km/hr, a motor boat goes 10 km upstream and back again to the starting point in 55 minutes. Find the speed of the motor boat in the still water.
সঠিক উত্তর
6.45 km/hr
মন্তব্য
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