Bankers Adda is also known to be called as Easy Shortcuts adda.
Today we came back with a New Easy Shortcuts
Go through the Shortcut and if you have any doubts please contact bankers adda in the comment section.
Easy Shortcut on Boats and Streams 1
1. A boat can travel with a speed of 12km/hr in still water . If the speed of the stream is 5km/hr , find the time taken by boat to go 68km downstream.
Solution : Speed downstream = (12+5)km/hr = 17 km/hr
Time taken to travel 68km downstream = 68/17hrs =4hrs
2. A man can row upstream at 8kmph and downstream at 10kmph. Find the man's rate in still water and the rate of current.
Solution : Rate in still water = 1/2 (10+8)km/hr = 9km/hr
Rate of current = 1/2(10-8)km/hr =1km/hr
3. If a man rows at the rate of 5kmph in still water and his rate against the current is 3.5kmph, then man's rate along the current is ?
Solution: Let us consider the rate along the current be x kmph.
Then, 1/2(x+3.5) = 5 or X= 6.5 Kmph
4. A speed of a boat in still water is 10 km/hr. If it can travel 26km downstream and 14km upstream in the same time , the speed of the stream is ?
Solution : let the speed of the stream be x km/hr. then,
Speed downstream=(10+x)km/hr,
speed upstream= (10-x)km/hr
Therefore 26/(10+x)= 14/(10-x)
260-26x= 140+14x => 40x=120
x=3km/hr
5. A boat covers a certain distance downstream in 1 hour, while it comes back in 3/2 hours. If the speed of the stream is 3kmph, what is the speed of the boaat in still water ?
Solution : Let the speed of the boat in still water be x kmph.
Then speed downstream = (X+3)kmph
Speed upstraem = (x-3)kmph
Therefore (X+3)*1 = (x-3)*3/2
2x+6=3x-9 => X= 15kmph
Checkout other Topics
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Interview Tips Abbreviations Dates to Remember
Today we came back with a New Easy Shortcuts
Go through the Shortcut and if you have any doubts please contact bankers adda in the comment section.
Easy Shortcut on Boats and Streams 1
1. A boat can travel with a speed of 12km/hr in still water . If the speed of the stream is 5km/hr , find the time taken by boat to go 68km downstream.
Solution : Speed downstream = (12+5)km/hr = 17 km/hr
Time taken to travel 68km downstream = 68/17hrs =4hrs
2. A man can row upstream at 8kmph and downstream at 10kmph. Find the man's rate in still water and the rate of current.
Solution : Rate in still water = 1/2 (10+8)km/hr = 9km/hr
Rate of current = 1/2(10-8)km/hr =1km/hr
3. If a man rows at the rate of 5kmph in still water and his rate against the current is 3.5kmph, then man's rate along the current is ?
Solution: Let us consider the rate along the current be x kmph.
Then, 1/2(x+3.5) = 5 or X= 6.5 Kmph
4. A speed of a boat in still water is 10 km/hr. If it can travel 26km downstream and 14km upstream in the same time , the speed of the stream is ?
Solution : let the speed of the stream be x km/hr. then,
Speed downstream=(10+x)km/hr,
speed upstream= (10-x)km/hr
Therefore 26/(10+x)= 14/(10-x)
260-26x= 140+14x => 40x=120
x=3km/hr
5. A boat covers a certain distance downstream in 1 hour, while it comes back in 3/2 hours. If the speed of the stream is 3kmph, what is the speed of the boaat in still water ?
Solution : Let the speed of the boat in still water be x kmph.
Then speed downstream = (X+3)kmph
Speed upstraem = (x-3)kmph
Therefore (X+3)*1 = (x-3)*3/2
2x+6=3x-9 => X= 15kmph
Checkout other Topics
Aptitude Quiz Banking Quiz Computer Quiz
Daily Quiz English Quiz GK Quiz
English Learning Tips Invention Quiz Reasoning Quiz
Interview Tips Abbreviations Dates to Remember
