Posted by **christina** on Sunday, February 24, 2008 at 10:22pm.

hi my name is christina and i have an electrical question i need help with.

i am taking power engineering electrical 188.

the question is:

how much will ity cost to use 6 lamps of 100 W each if they burn for 5 hours each evening in a month (30 days). the cost of electricity is 0.04 cents per kwh?

how do u solve this question? the answer is $3.60

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