Physics

Problem

4. A household uses the following appliances every day: (i) Refrigerator:

400\,\text{W}

for

8\,\text{h}

(ii) Ceiling fan:

120\,\text{W}

for

6\,\text{h}

(iii) LED TV:

100\,\text{W}

for

3\,\text{h}

If electricity costs Rs 6 per kWh, what will be the electricity bill for

30

days? a) Rs 786 b) Rs 760 c) Rs 706 d) Rs 846