Question

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

Answer 1

$ .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