A house has five rooms with 60 w bulbs everyday the bulbs are switched on from 7:00 pm to 10:30 pm.find the cost per week for lighting these rooms at ₹6.70 per unit
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The cost per week will be Rs 49.25
lucy21:
Right
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Hope this helps you.
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I think it is wrong
First convert into kilo watt by dividing by 1000. In the last calculations you have skipped 7. Two errors found.
Yes
sorry, I have done a great mistake. Thanks for the comment.
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