Question

Theater m has 25 rows with 27 seats in each row. how many of the seats were occupiedduring a certain show?(1) during the show, there was an average (arithmetic mean) of 10 unoccupied seatsper row for the front 20 rows.(2) during the show, there was an average (arithmetic mean) of 20 unoccupied seatsper row for the back 15 rows.

Answer 1

1) 475
2)375
You need to multiply 25 by 27 and you get 675 then to get answer one you need to multiply 10 by 20 to get 200 the take 200 away from 675 to get 475 then do the same thing with the second problem 20x15 which is 300 the take 300 away from 675.