Boats and Streams test 1

if boat’s rate in still water is 10 km/hr and current rate is 7      km/hr then find downstream speed?





If man’s rate in still water is 20km/hr and stream rate is 8      km/hr then find upstream speed?





If man’s rate in still water is 15 km/hr and down stream speed  is 20 km/hr then find velocity of water?





If current rate is 10 km/hr and down stream speed is 25 km/hr      then find boat’s rate in still water?





If boats rate in still water is 25 km/hr and upstream speed is  15 km/hr then fid the current rate?





If stream rate is 10 km/hr and upstream speed is 5 km/hr then  find man’s rate in still water?





if man’s rate in still water is 30 km/hr and upstream speed is 20 km/hr then find downstream speed?





If current rate is 15 km/hr and upstream speed is 5 km/hr then find down stream speed?





If velocity of water is 20 km/hr and down stream speed is 50 km/hr then find upstream speed?





if boat rate in still water is 20 km/hr and down stream speed   is 30km/hr then find upstream speed?







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