question_answer

P is four times as fast as Q and Q is six times as fast as R. If a certain distance is covered by Q in 28 minutes, then the time taken by C to cover the same distance is _________

A) 2 : 48 hrs  

B)                                       2 : 28 hrs

C) 2 : 50 hrs                                              

D) 2 : 55 hrs

E) None of these