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Answer
Figure This!
 

Quick Answer:

If each person takes 30 seconds to buy a ticket, then the 299 people in front will take about 30 × 299 = 8970 seconds, about 150 minutes. That's 2 1/2 hours.Ticket Booth

  

Another way to estimate this is to recognize that if it takes 30 seconds for one person to buy a ticket, then 2 people can buy a ticket in 1 minute. Thus, it takes 300 ÷ 2 = 150 minutes for your turn to arrive. That's about a 2 1/2 hour wait.300 Girl
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