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 row downstream at 10 kmph and upstream at 5 kmp. The man's rowing rate in still water is--
- A ferry can travel twice as fast when empty as when it is full. It travels 20 miles with full load, spends 1 hours for unloading & returns to its original port empty. It took 11 hours to complete the journey. What is the speed when the ferry is empty?
- A man can row downstream at 14 km/h and upstream at 8 km/hr. What is the rate of the stream?
- 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?
- 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.
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