Bob enters cycling competitions every single week and hopes to win the 100 dollar grand prize each time. For the first 2 weeks, he managed first place and got 100 dollars each week. He is saving up for a puppy that costs 1000 dollars. What is the minimum number of additional weeks Bob must win first place?
Two weeks already passed and Bob has 200 dollars.
Bob needs 1000-200=<<1000-200=800>>800 more dollars.
Bob needs to win the competition for at least 800/100=<<800/100=8>>8 more weeks.
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