Got to interview at doordash, I would say the interview didnt explain this very well and there was some accent barrier so I had a hard time understanding what exactly he wanted. I asked him how would the data would be passed through and couldn't really understand him when he explained and seemed like he didnt know the question to well. I was able to come up with a solution.

06: 15 Dx accepts order A
06: 18 Dx accepts order B
06: 30 Dx fulfills order A
06: 40 Dx fulfills order B

the rate Door dasher(Dx) accepts one order is .30$\ast timeitsfullfilledifDxacceptsmorethanoneorderbeforeitsfulfilledthentherateisnumOfOrders\ast .30$ * time until order is fulfilled

calculate the total pay