Related Questions

চারটি সমানুপাতিক রাশির প্রান্তীয় রাশি দুটির গুনফল ২০০। প্রথম রাশিঃ দ্বিতীয় রাশি= ১ঃ২, দ্বিতীয় রাশিঃচতুর্থ রাশি= ১ঃ৪। তৃতীয় রাশিটি কত?
A ৫
B ১০
C ২০
D ৪০
A boat runs at 22 km per hour along the stream and 10 km per hour against the stream .Find the ratio of the speed of the boat in still water to that of the speed of the stream .
A 2 :3
B 5 : 3
C 7 : 3
D 8 : 3
A boat goes 13 Km upstream (against current) in 39 minutes. THE SPEED OF STREAM (current) is 3 km/hr. what is the speed of the boat in still water?
A 23 km/hr
B 27km/hr
C 17km/hr
D 20km/hr
In one hour, a boat goes 11 km along the stream and 5 km against the stream. The speed of the boat in still water (in km/hr) is :
A 3
B 5
C 8
D 9
In one hour, a boat goes 11 km/hr along the stream and 5 km/ hr against the stream. What is the speed of the boat in still water?
A 5 km/hr
B 8 km/hr
C 9 km/hr
D 10 km/hr
The ratio of the speed of boat in still water to the speed of stream is 16 :5. A boat goes 16.5 km in 45 minute upstream. Find the time taken by boat to cover the distance of 175 km downstream.
A 30minutes
B 25minutes
C 50minutes
D 45minutes
The ratio of the speed of boat in still water to the speed of stream is 16: 5. A boat goes 16.5 km in 45 minute upstream . Find the time taken by boat to cover the distance of 17.5 km downstream .
A 30 minutes
B 25 minutes
C 50 minutes
D 45 minutes
The ratio of the speed of boat in still water to the speed of stream is 16 : 5. A boat goes 16.5 km in 45 minute upstream , find the time taken by boat to cover the distance of 17.5 km downstream .
A 30 minutes
B 25minutes
C 50 minutes
D 45 minutes
A boat has a crack in its bull which is leaking water into the boat and could pump which can pump the water out in 8 hours . If the boat is 168 km away from the shore and the pump is running what is the minimum speed the boat should run at so that it can reach the shore before sinking?
A 5km./hour
B 6 km/hour
C 7 km/hour
D 8km/hour
If a boat goes 7 km upstream in 42 minutes and the speed of the speed of the stream is 3 kmph, the speed of the boat in still water is
A 4.2 km/hr
B 9 km/hr
C 13 km/hr
D 21 km /hr

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