সব প্রশ্নে ফিরে যান
Math
A man can row a boat at 10 km/hr in still water. If the speed of the stream is 6 km/hr, the time taken to row a distance of 80 km downstream is:
A) 8 hours
B) 5 hours
সঠিক উত্তর
C) 10 hours
D) 20 hours