সকল সরকারী/বেসরকারী পরীক্ষার প্রশ্ন পেতে ক্লিক করুন গণিতের আইকিউ টেস্ট করতে ক্লিক করুন 
A man can now a boat at 10 km/hr in still water. If the speed of the stream is 6 km/hr, the time teken to row a distance of 80 km downstream is:
A man can now a boat at 10 km/hr in still water. If the speed of the stream is 6 km/hr, the time teken to row a distance of 80 km downstream is:
- ক. 8 hours
- খ. 5 hours
- গ. 10 hours
- ঘ. 20 hours
সঠিক উত্তরঃ 5 hours
এ সম্পর্কিত আরো প্রশ্ন দেখুন
- A man can row upstream at 10 km/h and downstream at 16 km/h. His rate in still water is---
- 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 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?
- 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 now a boat at 10 km/hr in still water. If the speed of the stream is 6 km/hr, the time teken to row a distance of 80 km downstream is:
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