First, we add the two types of days together to find 10+10=<<10+10=20>>20 days in total between the two types.

We then divide this number in half to find Mark's remaining number of days, getting 20/2= <<10=10>>10 days remaining.

Since each day counts as 8 hours, we multiply 10*8= <<10*8=80>>80 hours' worth of days remaining for Mark.

# Answer

80
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
At Snowflake Plastics, each employee gets 10 sick days and 10 vacation days per year.  If Mark uses half his allotment of both types of days in a year, how many hours' worth of days does he have left if each day covers an 8-hour long workday?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
80
At Snowflake Plastics, each employee gets 10 sick days and 10 vacation days per year.  If Mark uses half his allotment of both types of days in a year, how many hours' worth of days does he have left if each day covers an 8-hour long workday?
train