6) A business park has two buildings, one older and one newer. Half of the offices in each building face the two main roads, while the other half face a lake and several trees. Each
building has three floors of standard office space (20 offices per floor) and one top floor
of large offices, which are double the size (10 large offices per floor). Currently, 75% of
the offices are occupied. How many offices are there? The average number of people per
office is 10, so how many people are approximately in the building? (select two boxes)