সকল সরকারী/বেসরকারী পরীক্ষার প্রশ্ন পেতে ক্লিক করুন গণিতের আইকিউ টেস্ট করতে ক্লিক করুন 
A man can row upstream at 10 km/h and downstream at 16 km/h. His rate in still water is---
A man can row upstream at 10 km/h and downstream at 16 km/h. His rate in still water is---
- ক. 12
- খ. 26
- গ. 13
- ঘ. 6
সঠিক উত্তরঃ 13
এ সম্পর্কিত আরো প্রশ্ন দেখুন
- 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 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?
- A man rows upstream 24 km and downstream 36 km, taking 6 hours each time. The velocity of the current will be:
- 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?
- 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:
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