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
- Speed of a boat in standing water is 10 km/h and the speed of the stream is 2 km/h. A man rows to a place at a distance of 48 km and comes back to the starting point. What will be the total time taken by him?
- The velocity of a boat rowed downstream is three times that of the same boat rowed upstream. If the speed of the stream is 2.5 miles per hour what is the speed of rowing in miles/hr?
- 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 man can row downstream at 14 km/h and upstream at 8 km/hr. What is the rate of the stream?
- A boat sailing against a stream of river takes 6 hours to travel 24 kms, while sailing with the stream it takes 4 hours to travel the same distance. What is the speed of the stream?
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