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Mary works from 5:00 pm to 8:30 pm on wednesday and thursday and from 9:00 am to 3:30 pm on saturday and sundays . how many hours does mary work per week

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I hope this helps you




on Wednesday 8:30-5:00=3:30 hour


on Thursday 12:00-9:00=3:00 hour


12:00-3:30=3:30 hour


3:00+3:30=6:30 hour on Thursday



3:30+6:30=10 hour

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