Ten passengers per minute arrive at the airport's security checkpoints. Two inspectors are needed on one search stand. The search stand can search for 12 passengers per minute. Airline would like to determine the number of search tables required to minimize the sum of its annual operating and delay costs. The hourly delay cost per passenger is 12,000 won, and the airport only operates 16 hours a day. The annual operating cost of one search stand is 100 million won. How many checkpoints do you need? I Ten passengers per minute arrive at the airport's security checkpoints. Two inspectors are needed on one search stand. The search stand can search for 12 passengers per minute. Airline would like to determine the number of search tables required to minimize the sum of its annual operating and delay costs. The hourly delay cost per passenger is 12,000 won, and the airport only operates 16 hours a day. The annual operating cost of one search stand is 100 million won. How many checkpoints do you need