Kai opens his restaurant from Tuesday to Saturday each week． He counts the number of customers each day for two weeks． The bar chart shows some of the results． $$\[ \text { Key: } \square=\text { Week } 1 \text { } 1=\text { Week } 2 \]$$ （a）In week 1 there were 200 customers in total． Complete the bar chart． ［2］

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