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An electric refrigerator rated 400 W operates 8 hours a day. The energy consumed in 30 days, in kWh, is:

Question
An electric refrigerator rated 400 W operates 8 hours a day. The energy consumed in 30 days, in kWh, is:
9.6 kWh
96 kWh
960 kWh
12000 kWh
Answer
96 kWh
Detailed Explanation
Energy = 400 W x 8 h/day x 30 days = 96000 Wh = 96 kWh.
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