# Calculating the cost!!

A toaster runs on voltage $$250 V$$ and current $$1 A$$.Toaster is used for 30 days, daily for 30 minutes. An electric heater is operated on voltage $$300 V$$ and current $$1.5 A$$. The heater is used for 30 days daily for 50 minutes. Rate of electrical energy is 4 per kWh. Calculate the cost of electrical energy.

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