Calculate MHR from the following data.

Cost of machine Rs 58,000 Estimated scrap value Rs 3,000 Estimated working life 20,000 hours Estimated cost of maintenance during working life of machine Rs 12,000 Power used Re 1 per hour Rent & Rates per month (10% should be charged to this machine) Rs 1,500 Normal machine running hours during a month 180 hours Standing charges per month Rs 200