Calculate the MHR for Machine A from the following data:

Cost of machine

Rs 16,000

Estimated scrap value

Rs 1,000

Effective working life

10,000 hours

Running time per 4 weekly period

160 hours

Average cost of repairs and maintenance per 4 weekly period

Rs 120

Standing charges allocated to Machine A per 4 weekly period

Rs 40

Power used by the machine

4 units per hour at a cost of 5 paise per unit