An observer standing at station observes frequency 219 Hz when a train approaches and 184 Hz when train goes away from him. If velocity of sound in air is 340 m/s, then velocity of train and actual frequency of whistle will be [RPET 1997]

• A.            \[15.5\,m{{s}^{-1}},\ 200\,Hz\]                                        
• B.            \[19.5\,m{{s}^{-1}},\ 205\,Hz\]
• C.            \[29.5\,m{{s}^{-1}},\ 200\,Hz\]                                        
• D.            \[32.5\,m{{s}^{-1}},\ 205\,Hz\]