Answer:
Rate is 1.5 times the straight line depreciation rate which is;
= 
= $10,000 per year
Rate =  * 100%
 * 100%
=12.5%
Reducing balance rate = 12.5% * 1.5
= 18.75%
The Depreciation Schedule would be;
Year  	Beginning Book Value  Depreciation Expense  	Accumulated Depreciation  	Book Value
1  $80,000  80,000*18.75% = $15,000  	$15,000  	$65,000
2  $65,000  65,000 * 18.75% = $12,1875.50  	$27,187.50  	$52,812.50
3  $52,812.50  52,812.5 *18.75% = $9,902.34  	$37,187.84  	$42,910.16
4  $42,910.16  42,910.16 * 18.75% = $8,045.66  	$45,233.50  	$34,766.50
5  $34,766.50  34,766.50 * 0.1875 = 6,518.72  	$51,752.22  	$28,247.78
6  $28,247.78  28,247.78 * 0.1875= $5,296.45  	$57,048.67  	$22,951.33
7  $22,951.33  22,951.33 * 0.1875= 4,403.37  	$61,452.04  	$18,547.96
8  $18,547.96  18,547.96 * 0.1875 = $3,477.74    $80,000  	$0
    $3,477.74 + 15,070.22= $18,574.96      
Depreciation for the last year was not sufficient to take the truck to $0 so the remainder will be depreciated in that year so that it may be completely depreciated.