Q 2451767624.     Aryan runs at a speed of 40 metres/minute. Rahul
follows him after an interval of 5 minutes and runs at
a speed of 50 metres/minute. Rahul's dog runs at a
speed of 60 metres/minute and starts along with
Rahul. The dog reaches Aryan and then comes back
to Rahul, and continues to do so till Rahul reaches
Aryan. What is the total distance covered by the dog?

IAS 2005 Prelims
A

600 metres

B

750 metres

C

980 metres

D

1200 metres

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