How should I calculate depreciation in this case

Suman (JOB) (43 Points)

21 April 2008  

Dear All,

Please sort out my problem of calculating depreciation in the following case:

Gross Block of machinery as on 1/04/2007 ..................................1,00,000

Purchase of new machinery on  1/06/2007.....................................10,000

 The machinery is used in single shift upto 31/12/2007.

Again, new machinery was purhcased on   1/02/2008....................20,000

The machinery was used in triple shift till 31/03/2008.

Please help me how to calculate depreciation in this case??

Thanks,

Suman Sharma