Bob, Damon and Charlie decided to race on a circular race track. All of them start from the same point at different time

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Q 2336856772.     Bob, Damon and Charlie decided to race on a circular race track. All of them start from the same point at different times. Damon started 3 minutes after Charlie and both Bob and Damon goes ahead of Charlie’s car at 8 pm on the same day. The speed of Bob, Damon and Charlie’s cars are 120, 80, 70 metre per minute respectively. Find the time at which Bob started?
IBPS-PO 2017 Mock Mains
A

7:46 pm

B

7:50 pm

C

7:00 pm

D

7:36 pm

E

6:45 pm

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Solution
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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