সকল সরকারী/বেসরকারী পরীক্ষার প্রশ্ন পেতে ক্লিক করুন গণিতের আইকিউ টেস্ট করতে ক্লিক করুন 
A man can row downstream at 10 kmph and upstream at 5 kmp. The man's rowing rate in still water is--
A man can row downstream at 10 kmph and upstream at 5 kmp. The man's rowing rate in still water is--
- ক. 2.5 km/hr
- খ. 5 km/hr
- গ. 7.5 km/hr
- ঘ. 15 km/hr
সঠিক উত্তরঃ 7.5 km/hr
এ সম্পর্কিত আরো প্রশ্ন দেখুন
- A man can rows 6 km/hr in still water. When the river is running at 1.5 km/hr, it takes him 1.5 hour to row to a place and back. How far is the place?
- The speed of a boat in still water is 10 km/hr. If it can travel 26 km downstream and 14 km upstream in the same time, the speed of the stream is:
- Speed of the boat in standing water is 6 km/h and the speed of the stream is 2 km/h. What will be the total time if a man goes by the boat upstream 32 km and comes back to the starting point?
- A certain river has a current of 3 miles per hour. A boat takes twice as long to travel upstream between two points as it does to travel downstream between the same two points. What is the speed of the boat in still water?
- If a man row at 10 km/h along the current & the rate of the current is 2 km/h, what is the man's rate against the current?
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