 A boat can cover 21 km in the direction of current and 15 km against the current in 3 hours each. Find the speed of current.
A) 4.5 km/hr
B) 2.5 km/hr
C) 3 km/hr
D) 1 km/hr
E) 6 km/hr
 A boat in a river with speed of stream as 6 km/hr can travel 7 km upstream and back in 4 hours. What is the speed of the boat in still water?
A) 10 km/hr
B) 8 km/hr
C) 11 km/hr
D) 12 km/hr
E) 15 km/hr
 A boat can cover 40 km upstream and 60 km downstream together in 13 hours. Also it can cover 50 km upstream and 72 km downstream together in 16 hours. What is the speed of the boat in still water?
A) 5.5 km/hr
B) 6.5 km/hr
C) 8.5 km/hr
D) 3.5 km/hr
E) None of these
 A boat can row to a place 56 km away and come back in 22 hours. The time to row 21 km with the stream is same as the time to row 12 km against the stream. Find the speed of boat in still water.
A) 1.5 kmph
B) 3.5 kmph
C) 5.5 kmph
D) 7.5 kmph
E) None of these
 A boat travels downstream from point A to B and comes back to point C half distance between A and B in 18 hours. If speed of boat is still water is 7 km/hr and distance AB = 80 km, then find the downstream speed.
A) 15 km/hr
B) 18 km/hr
C) 12 km/hr
D) 10 km/hr
E) 6 km/r
 A boat can cover 20 km upstream and 32 km downstream together in 3 hours. Also it can cover 40 km upstream and 48 km downstream together in 5 and half hours. What is the speed of the current?
A) 13 km/hr
B) 8 km/hr
C) 7 km/hr
D) 11 km/hr
E) 16 km/hr
 Speed of boat in still water is 14 km/hr while the speed of current is 10 km/hr. If it takes a total of 7 hours to row to a place and come back, then how far is the place?
A) 30 km
B) 18 km
C) 24 km
D) 32 km
E) None of these
 A man can row a certain distance downstream in 4 hours and return the same distance in 8 hours. If the speed of current is 16 km/hr, find the speed of man in still water.
A) 47 km/hr
B) 48 km/hr
C) 42 km/hr
D) 50 km/hr
E) None of these
 There are 3 point A, B and C in a straight line such that point B is equidistant from points A and C. A boat can travel from point A to C downstream in 12 hours and from B to A upstream in 8 hours. Find the ratio of boat in still water to speed of stream.
A) 9 : 2
B) 8 : 3
C) 7 : 1
D) 4 : 1
E) 7 : 3
 A boat can row 18 km downstream and back in 8 hours. If the speed of boat is increased to twice its previous speed, it can row same distance downstream and back in 3.2 hours. Find the speed of boat in still water.
A) 9 km/hr
B) 5 km/hr
C) 4 km/hr
D) 8 km/hr
E) 6 km/hr
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10x mam?
Please check Q3. Also it can cover 50 km upstream and 72 km downstream together in 72 hours.
It should be 16 as per the answer.
Yes yes. Typing mistake. 16 hai
q2 me speed of boat to diya h na 6 fir speed of boat x kyu liya ?
yes that will be speed of stream
Q4. B+W=21
BW=12
Ratio 7/4
2B=11
B=5.5
B to A downstream in 8 hours shoud b upstream
q.9
yes
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9/10
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