Calculate the MHR for Machine A from the following data:

Cost of machine Rs 1,600 Estimated scrap value Rs 100 Effective working life 10,000 hours Running time per 4 weekly period 160 hours Average cost of repairs and maintenance charges per four-weekly period Rs 12.00 Standing charges allowed to Machine A per four-weekly period Rs 4.00 Power used by machine 4 units per hour at a cost of 0.35 paise per unit