In: Accounting
A manufacturing company makes it a policy that for every new equipment purchased, the annual depreciation cost should not exceed 25% of the first cost at any time without salvage value. Determine the length of service life if the depreciation used is the SYD method
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| A manufacturing company | 
| We know, In SYD the largest depreciation charges is in first year. | 
| So, d1= (C0-Cn)*(n/sum of years) | 
| Where, d1= Depreciation in first year. C0= Cost of asset. Cn= Salvage value of asset. | 
| As the annual depreciation cost should not exceed 25% of the first cost at any time without salvage value so the equation will reduce to: | 
| .25C0= (C0-Cn)*(n/sum of years) | 
| Or, 25C0/100= (C0-0)*(n/sum of years) because salvage value is zero. | 
| Or, 25C0/100= C0*(n/sum of years) | 
| Or, C0/4= C0*(n/sum of years) | 
| Or, Sum of years= 4n | 
| Now, using the A.P. formula for summation we know summation= n*(n+1)/2 | 
| Or, 4n= n*(n+1)/2 | 
| Or, 8n= n^2+n | 
| Or, 8n-n= n^2 | 
| Or, 7n= n^2 | 
| Therefore n= 7 years. | 
| So the length of service life if the depreciation used is the SYD method is 7 years. |