an electric bulb marked 60 watt is used for 5 hours in a week what is the cost of electricity if the rate is rupees 3 per unit
RohanMylo:
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60*5*7 that is 2100 watts
convert it into kwh or units.( both are same)
2100÷1000 that is 2.1 units
multiply it by 3
tor answer is ₹6.3
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