SBI PO MAINS 2021|BOATS AND STREAMS

 

  1. Sriram can row downstream at 11 km/hr and upstream at 7 km/hr. Find the speed of Sriram in still water and speed of current?
    • 6 km/hr and 1 km/hr
    • 7 km/hr and 2 km/hr
    • 8 km/hr and 3 km/hr
    • 9  km/hr and 2  km/hr
    • 9 km/hr and 1 km/hr     
  2. Siva can row 60 km downstream and 36 km upstream, taking 10h each time. What is the velocity of the current?
    • 1.2 km/hr                        
    • 2.2 km/hr
    • 3.2 km/hr         
    • 3 km/hr
    • 1.3 km/hr
  3. If the speed of a swimmer in still water is 13 km/hr. Find the downstream speed of the swimmer, when the river is flowing with the speed of 4 km/hr.
    • 9 km/hr             
    • 17 km/hr                
    • 20 km/hr
    • 7 km/hr             
    • 19 km/hr
  4. What time will be taken by a boat to cover a distance of 192 km along the stream. If speed of  boat in still water is 24 km/hr and speed of stream is 8 km/hr ?
    • 6h       
    • 4h       
    • 7h       
    • 8h       
    • 3h
  5. Kiran can row against the current three - fourth of a kilometre in 15 min and returns same distance in 10 min, then ratio of his speed to that of current is
    • 4:1      
    • 1:5      
    • 5:1
    • 2:5      
    • 1:4

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