An electric iron is rated 220V, 2 kW. If the iron is used for 3h daily, find the cost of running it for one week if it costs ₹ 4.25 per kWh.
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Given - Voltage - 220 V
Power - 2kW
Time - 3 hour
Cost per kWh - ₹ 4.25
Find - Cost of running an electric iron for one week for given duration.
Solution - Energy consumption of electric iron per day as per given values - Power*time.
Energy consumption - 2*3
Energy consumption - 6kWh
Energy consumption for a week - 6*7
Energy consumption - 42 kWh.
Total cost - Cost per kWh * total number of kWh.
Total cost - 4.25*42
Total cost - Rs. 178.5
Hence, total cost of running an electric iron for a week for given duration of time is Rs. 178.5.
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