3. The following information is available from Gray Corporation:

Information from the Balance Sheet:

	2012	2011
Depreciable Assets	$2,458,600	$1,985,400
Accumulated Depreciation	(1,350,700)	(1,046,000)
Depreciable Assets (Net)	$1,107,900	$939,400

From the Income Statement	2012
Depreciation Expense	$384,500

Use the information above to calculate the following:

a. Average age of the depreciable assets for 2012.

b. Average remaining useful life of the depreciable assets for 2012.