Grace just started her own business. Each week, she charges 300 dollars. Grace's client will pay her every 2 weeks. How many weeks will it take for Grace to get 1800 dollars?
Every two weeks, Grace will get 300*2=<<300*2=600>>600 dollars.
It will take Grace 1800/600=3 2-week intervals to get 1800 dollars.
It will take Grace 3*2=<<3*2=6>>6 weeks in total.
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