সকল সরকারী/বেসরকারী পরীক্ষার প্রশ্ন পেতে ক্লিক করুন গণিতের আইকিউ টেস্ট করতে ক্লিক করুন
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?
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?
- ক. 3 miles per hour
- খ. 6 miles per hour
- গ. 9 miles per hour
- ঘ. 12 miles per hour
সঠিক উত্তরঃ 9 miles per hour
এ সম্পর্কিত আরো প্রশ্ন দেখুন
- 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.
- 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:
- 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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