A 1400 watt room heater is used for 10hours daily. If the cost of energy is rupees 3.00per unit what is the cost of using it for a month of 30 days.
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1400 watt ka kw m badal lo 1.4 kw aa gaya ga usko 10s multiply ❌ karo uska bad 3sa or phir 30 s multiply kar do answer aa gaya ga mahina ka
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