An electric room heater is rated at 2kW . Calculate the cost of using it for 2 hours daily in the month of September for 30 days if each unit costs Rs 4

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Solution

The total energy consumed= 2kW x 2(Time given 2hrs) x 30(september has 30 days.)
=120kW

So total cost=4 x 120=Rs480

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Similar questions

An electric heater is rated at 2 kW. Electrical energy costs Rs 4 per kWh. What is the cost of using the heater for 3 hours ?

(a) Rs 12

(b) Rs 24

(d) Rs 48

30 d a y s

2 k W

4 h o u r s

R s .5

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