Boats and Streams test 3

A certain distance of downstream covered in 10 hrs and the same      distance of upstream covered in 15 hrs the water is flowing with 5 km/hr      then find man’s rate in still water?





If man’s rate in still water is 15 km/hr it takes him twice a      long to row aup as to row down the river then find current rat?





If man’s rate in still water is 24 km/hr it takes him thrice as      long to row up as to row down the river then find stream rate?





A person rows 2 km downstream in 20 min and upstream in one hr.      find the velocity of the stream?





A man can row 30 kms upstream and 44 kms downstream in 10 hrs.      Also he can row 40 kms upstream and 55 kms downstream in 13 hrs. Find the      rate of the current?





A boat can row upstream at 8 km/hr and down stream ay 14 kmph What      is the speed of the boat in still water?





The speed of the boat in still water is 12 kmph and its speed      against the current is 16 kmph with the current is. What is the speed of      the flow in kmph?





The speed of a boat in still water is 12 kmph and its speed      against the current is 8 kmph. What is the speed of the boat along the      current in kmph?





A boat rows at 10 kmph against the current and speed of the      flow is 4 kmph. What is the speed of the boat down the current in kmph?





A man rate against the current is 10 kmph and with the current      is 15 kmph. What is the velocity of the stream in kmph?







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