During the shooting of the superhit film MARD Amitabh Bachchan
was waiting for his beloved Amrita Singh with his dog. When he saw her approaching, the dog was excited and dashed into her, then went back to master and so on, never stopping. How far would you estimate the dog ran, if its speed is 30 km/h and each of them walked at 4 km/h , starting 400 m apart?
A: 400 m
B: 880 m
C: 1500 m
D: 30 km
The speed of the dog is 30 km/h.
The speed of Amitabh Bachchan and Amrita Singh is 4 km/h.
The distance between them is 400m.
Hence, option C is correct, that is
The dog has run 1500 m.