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NAME: A room has a 60 Watt, a 100 Watt and a 150 Watt light bulb. How much does it cost to use all the lamps for 2.5 hours at $0.08/ kWh? E-60
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24 votes
24 votes
NAME:

A room has a 60 Watt, a 100 Watt and a 150 Watt light bulb. How much does it
cost to use all the lamps for 2.5 hours at $0.08/ kWh?
E-60

User Roman Khomyshynets
by
2.8k points

1 Answer

20 votes
20 votes

Answer:

$ .0248 or 2.48 cents

Step-by-step explanation:

60 + 100 + 150 = 310 watts

for one hour = 310 watt- hr or .31 kw- hr

.31 kw-hr * .08 / kw-hr = .0248

User NorthLegion
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2.9k points
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