Final answer:
To go up one floor in a building with a height of 10 feet per floor, 15 stairs are required if the rise of each stair is 8 inches.
Step-by-step explanation:
To calculate the number of stairs required to go up one floor, we need to convert the height of one floor from feet to inches and divide it by the rise of each stair.
Since each floor is 10 feet high, we multiply 10 by 12 to convert it to inches.
This gives us a height of 120 inches per floor.
To find the number of stairs required, we divide the height of one floor (in inches) by the rise of each stair (8 inches).
So, the number of stairs required to go up one floor is 120 inches / 8 inches = 15 stairs.