In a house 10 electric bulbs of watt power of each glow 3 hours of daily . 5 fans of power 20 watt each run 6 hours daily, an electric heater of power 1000 watt runs 2 hours in alternate days and an iron of power 750 watt runs in every week. Calculate the total power consumed by all device in one month. If cost per unit power consumption is Rs 10 then find the total cost of electricity. given 4 weeks = 1 month.
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