Question

An exercise class had 18 people. If each person produced 1,900 BTUs of body heat during the class and the room is 28 ft × 32 ft × 12 ft, how many BTUs per cubic foot did they produce? (to the nearest hundredth)

Answer 1

Answer: C) 3.18 BTU/ft3

Answer 2

Answer: Number of BTU's per cubic foot is 3.18 BTUs/cubic ft.

Explanation:

Since we have given that

Number of people = 18

BTU produced by each person = 1900

Total BTU produced by 18 persons is given by

`18* 1900\\\\=34200`

Dimension of the room is given by

Length of room = 28 ft

Width of room = 32 ft

Height of room = 12 ft

So, Volume of room is given by

`Volume=Length* Breadth* Height\\\\Volume=28* 32* 12\\\\Volume=10752\ ft^3`

So, Number of BTU's per cubic foot is given by

`(BTU)/(Volume)\\\\=(34200)/(10752)\\\\=3.18\ BTUs/ft^3`