সকল সরকারী/বেসরকারী পরীক্ষার প্রশ্ন পেতে ক্লিক করুন গণিতের আইকিউ টেস্ট করতে ক্লিক করুন
A man rows upstream 24 km and downstream 36 km, taking 6 hours each time. The velocity of the current will be:
A man rows upstream 24 km and downstream 36 km, taking 6 hours each time. The velocity of the current will be:
- ক. 1
- খ. 5
- গ. 4
- ঘ. 3
সঠিক উত্তরঃ 1
এ সম্পর্কিত আরো প্রশ্ন দেখুন
- A man rows upstream 24 km and downstream 36 km, taking 6 hours each time. The velocity of the current will be:
- 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:
- 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 upstream at 10 km/h and downstream at 16 km/h. His rate in still water is---
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