Answer
Depreciation for 2013= 3,000
Work Step by Step
25% straight-line rate X 2 = 50% double-declining rate
8,000 X 50% = 4,000 Depreciation for first full year.
4,000 X 6/12 = 2,000 Depreciation for half a year (first year),2012
6,000 X 50% = 3,000 Depreciation for 2013.