# Math Help - find the average

1. ## find the average

Hi, I need help with the following problem....

Ceiling Length is 7.91m

2.40m of the ceiling length is 1.94m high
5.51m of the ceiling Length is 2.46m high

What is the 'average' ceiling height for the room?

2. I got 2.3m. (best check with someone else)

3. Hello,

Originally Posted by FarraFarra
Hi, I need help with the following problem....

Ceiling Length is 7.91m

2.40m of the ceiling length is 1.94m high
5.51m of the ceiling Length is 2.46m high

What is the 'average' ceiling height for the room?
Originally Posted by r_maths
I got 2.3m. (best check with someone else)
The average ceiling height is given by :

$=\frac{2.46*5.51+1.94*2.40}{7.91}$

But I have no calculator here ~