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                                    A ship A is moving eastwards with a speed of 20 km/h and a ship B ,50 km south of A is moving northwards with a speed of 20 km/h. Then find the shortest distance between the ships. | 
                            
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Answer»  A ship A is moving eastwards with a speed of 20 km/h and a ship B ,50 km south of A is moving northwards with a speed of 20 km/h. Then find the shortest distance between the ships.  | 
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