1.

A boat moves with a speed of 5 km/h relative to water in a river flowing with a speed of 3 km/h and having a width of 1 km. The minimum time taken around a round trip is               [J&K CET 2005]         

A.               5 min                                
B.                          60 min         
C.              20 min                             
D.                           30 min         
Answer» E.


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